twingo electrical manual

8/17/2019 Twingo Electrical Manual

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For the sections not described in this note, refer to M.R. 305

77 11 201 098AUGUST 1998

Edition Anglaise

Special electrical notes PHASE II

N.T. 3022A

"The repair methods given by the manufacturer in this document are based on thetechnical specifications current when it was prepared.

The methods may be modified as a result of changes introduced by themanufacturer in the production of the various component units and accessoriesfrom which his vehicles are constructed."

All copyrights reserved by Renault.

Copying or translating, in part or in full, of this document or use of the service partreference numbering system is forbidden without the prior written authority of Renault.

C RENAULT 1998

X06X


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Contents

Fog lights 80-1

HEADLIGHTS80

81-181-2

Rear lightsFuses

REAR AND INTERIOR LIGHTS81

Instrument panelWarning lights strip on dashboard

83-183-2

INSTRUMENT PANEL83

Relay mounting 87-1

ELECTRICAL ASSISTANCE EQUIPMENT87

WIRING

Air bags and seat belt pretensioners

GeneralSpecial toolingXRBAG test kitXRBAG 30 track adaptorXRBAG 50 track adaptorDummy ignition moduleDestruction equipmentOperation of pretensioners andfront air bagsOperation of side air bagsSRP computerSide impact sensorsOperations on trigger wiring

Seat belt pretensionersSRP seat beltsSRP driver’s front air bagRotary switchPassenger’s front air bag moduleSide air bag moduleDestruction procedurePretensionersFront and side air bags

Front air bagsIntroduction

XR25 ficheInterpretation of XR25 bargraphsChecking conformityAid

Front and side air bagsIntroductionXR25 ficheInterpretation of XR25 bargraphsChecking conformityAid

88-1

88-288-488-488-588-588-688-6

88-788-788-8

88-1288-13

88-1388-1688-1688-1888-2188-2488-2788-2788-28

88-29

88-3088-3388-5088-51

88-5288-5388-5688-8388-84

88

Page

82-1Coded key immobiliser system

82

Special notes 86-1

RADIO86

ENGINE IMMOBILISER


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HEADLIGHTSFog lights 80

For vehicles fitted with front fog lights.

REMOVAL - REFITTING

Remove the three mounting nuts (A) from behindthe bumper.

Then remove the light unit by pushing it forwards.

Disconnect the connector.

15133R

When refitting, adjust the light using screw (B)

from below the vehicle.15134S

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REAR AND INTERIOR LIGHTSRear lights 81

NEW TRACK ALLOCATIONS

15135R

Track Allocation

1 Earth2 Reversing light (right hand side)

Rear fog light (left hand side)3 Indicator4 Side light5 Stop light

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REAR AND INTERIOR LIGHTSFuses 81

To access the fuses, remove the storage pocket onthe driver’s side by tilting it completely.

Symbol Amps Allocation

20

15

10

10

20

20

20

15

15

10

10

Engine cooling fanassemblyRear screen wiper

Pretensioners/Air bag/Engine immobiliser

Radio

Heated rear screen

Injection

Heating fan assembly

Stop lights/Central flasherunit

Front windscreen wiper /washerFront fog lights

ABS

15136S

Symbol Amps Allocation

25

15

15

15

15

15

15

10

10

10

10

10

15

2

30

Cigar lighter/Reversinglight

LH headlight

RH headlight

LH dipped headlight

RH dipped headlight

LH side lights

RH side lights

Direction indicators/Hazard warning lights

Horn/ Immobiliser

Interior lights / Diagnosticsocket / consumers cut out

Variable power assistedsteeringRear fog light

Electric door locks /Electric rear view mirror

Automatic clutch /Automatic transmission

Electric windows

81-2


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The immobiliser is activated a few seconds afterthe key is removed from the ignition switch and isindicated by flashing of the red warning light lo-cated on the instrument panel.

If there is a fault in the key recognition system, asecurity code can be entered using the XR25.

This code will be given to the technician (on re-quest) by the local assistance network (dependingon the country, for example Delta Assistance on08 00 05 15 15 for France, NVSR for the UK by faxonly).

IMPORTANT: the technician must inform the cu-stomer that the immobiliser system starts automa-

tically 10 minutes after the ignition has been swit-ched off.

NOTE

On these vehicles, the identification number forthe key heads consists of eight numbers and let-ters beginning with the letter E.

ENGINE IMMOBILISERCoded key engine immobiliser system 82

NOTE

• On phase II TWINGO vehicles, only the codedkey engine immobiliser system has changed.

The PLIP engine immobiliser system remainsidentical to the phase I TWINGO with the ex-ception of the shape of the key. For PLIP engineimmobiliser fault finding, see Technical Note N °2330A.

• The injection warning light is not always opera-tional (see NT "Wiring diagram").

GENERAL

On vehicles without the PLIP, the immobiliser iscontrolled by a key recognition system (known asthe coded key engine immobiliser).

An independent coded electronic unit which ope-rates without a battery is integrated in the headof each key for the vehicle.

When the ignition is switched on, an anten-na/transponder ring located around the ignitionswitch interrogates and captures the code emitted by the key head and transmits it to the decoderunit.

If it recognises the code, vehicle starting is autho-rised.

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ENGINE IMMOBILISERCoded key engine immobiliser system

DESCRIPTION

With this system, the engine immobiliser is activa-ted approximately 10 seconds after the ignition is

switched off (shown by flashing of the red immobiliser warning light).

It consists of:• Two key heads equipped with a coded electro-

nic unit (A) allowing the engine immobiliser to be controlled.

82Opening a key head

Place the key head on a table, metal insert facingdown.

As indicated below, use a small screwdriver as a le-ver ensuring that the end is pressed against the lo-wer part (E) of the key head. This allows the upperpart to be slid away from the lower part.

13078R

13077R

NOTE: to remove the metal insert, move the retai-ning tab to one side before pulling it out. Whenrefitting, check that the insert is correctly clippedin place.

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• Antenna/transponder ring (C) located aroundthe ignition switch, equipped with a codedelectronic unit responsible for sending the codefrom the keys to the decoder unit (D).

NOTE: this ring is not coded.

Removal - refitting

Remove the half cowlings under the steering

wheel, release the antenna/transponder ringfrom the ignition switch and disconnect itsconnector.

NOTE: It is not necessary to remove the steeringwheel.

98654R2

• A decoder unit (D) located in the dashboard onthe left hand side.

It ensures the following functions:- decoding of the key signal coming from the an-

tenna/transponder ring,

- management of the engine immobiliser system by sending a code to the injection computer toauthorise vehicle starting,

- control of the red immobiliser warning light.

Removal - refitting

Remove the storage pocket on the driver’s side bytilting it as far as possible and remove the unitmounting nuts.

15137R

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• A red immobiliser warning light located on thewarning lights strip which is used to signal acti-vation of the engine immobiliser system ornon-recognition of the key.

OPERATION

When the engine immobiliser system is operatio-nal (approximately 10 seconds after the + afterignition feed is cut off), the red immobiliser war-ning light flashes (slow flashing: one flash/se-cond).

After the ignition is switched on, the anten-na/transponder ring analyses the key code and

sends it to the decoder unit.

If the code is not recognised by the decoder unit,the red engine immobiliser warning light flashes(rapid flashing).

If the code is recognised by the decoder unit, itsends a code to the injection computer via a codedconnection and extinguishes the red immobiliserwarning light (after approximately three se-conds).

At this moment, several things may happen:- the injection computer has no reference code

in its memory:• the code sent to it is entered into its memory.

- the injection computer has a reference code inits memory:• the code sent to it is compared to its refe-

rence code,• if the two codes match, the computer un-

locks the injection and authorises the engineto be started. When the ignition is switchedon, the immobiliser warning light illuminatesfor 3 seconds and extinguishes, indicatingthat the system is operating correctly,

• if the two codes do not match, the system re-

mains locked to prevent the engine beingstarted. When the ignition is switched on,the red immobiliser warning light illumi-nates then extinguishes. Vehicle starting isnot authorised.

NOTE: so that the system is able to operate cor-rectly, no object (example: key-rings) should beplaced between the key and the antenna / trans-ponder ring.

IMPORTANT: When the battery has a low charge,the drop in voltage caused by operating the star-ter motor may reactivate the immobiliser. If thevoltage is too low, the engine cannot be started,even by pushing the vehicle.

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REPLACING A KEY HEAD

The coded electronic unit in the key head is faulty:- order a replacement coded key head using the

number inscribed in the faulty key head (eightnumbers and letters beginning with the letter

E),

- if the customer requires the fault to be repairedimmediately (2 nd key unavailable), it is possibleto supply a new kit (decoder unit plus two keyheads) (see replacing a kit).

The key has been lost:- order a replacement key head using the num-

ber inscribed in the 2 nd key head (eight numbers and letters beginning with the letter E) oron a label (usually attached to the keys whenthe vehicle is delivered).In this case, also order the metal insert usingthe key number.

IMPORTANT: do not touch the key head electro-nic unit when taking note of the number in thekey head. If the key head electronic unit has beentouched, the key must be replaced.

NOTE: if the key head number cannot be found(both keys and the label have been lost), thecomplete kit will have to be replaced (decoderunit plus two PLIPS, plus the injection computer).

82REPLACING THE DECODER UNIT ONLY

A new decoder unit is not coded. Once it is fittedto the vehicle, it will have to be programmed with

the code from one of the keys so that it is opera-tional (see programming procedure).

NOTE: if the decoder unit alone has to be repla-ced, there is no need to carry out any operationon the injection computer as it retains the sameimmobiliser code.

IMPORTANT: when a decoder unit has been pro-grammed with the key code, it cannot be remo-ved from the memory, nor can another code bememorised in its place.

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5. Connect the XR25, set the ISO selector to S8.

Enter code

Bargraphs 19 RH side and 19 LH side should be illuminated (programming not carriedout).

6. Switch on the ignition (without starting theengine) using one of the keys (for approxi-mately two seconds). Bargraph 18 LH side il-luminates and 19 LH side extinguishes.The red immobiliser warning light flashes ra-pidly.

7. Switch off the ignition and start command

to lock programming in-to the system:- the red immobiliser warning light should

flash (slow flashing),- bargraphs 19 RH side and 18 LH side

should be extinguished.

8. Switch on the ignition for more than 10

consecutive seconds.

9. Switch off the ignition and wait until the redwarning light starts to flash slowly.

Enter command

with the ignition still switched off (bargraph9 LH side illuminates).

Switch on the ignition, the red immobiliserwarning light flashes more rapidly.

Follow the procedure for entering the securi-ty code (see procedure for entering the secu-rity code), using the code number correspon-ding to the old kit. This allows the old codememorised in the injection computer to beerased.


REPLACING A KIT(decoder unit plus two key heads)

If a kit has to be replaced, it will be necessary to:

- programme the key code into the decoder unit(supplied uncoded),- erase the old code memorised in the injection

computer using the security procedure (thecode number for the old kit can be requestedfrom the local assistance network, for exampleDELTA Assistance for France, NVSR for the UK by fax only).

IMPORTANT: To erase the old code (memorised inthe injection computer), the procedure described below MUST be followed, in the order given.

In effect, the injection computer code can only beerased using the security code (with the numberfrom the old kit) if the decoder unit fitted to thevehicle has been programmed with a code (as inthe following procedure).

NOTE: if the security code is introduced and thedecoder unit has the same code as the injectioncomputer, it will not be decoded.

1. Fit the metal inserts from the old keys intothe new key heads.

2. Note the number of one of the old key headsto obtain the security code.

3. Remove the decoder unit when the ignitionis switched off.

4. Fit the new decoder unit (ignition switchedoff).

82

G 0 4 *

D 5 6

G 6 0 *

82-7


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10. Switch the ignition off then on again for se-veral seconds without starting the engine toprogramme the immobiliser code from thenew kit into the injection computer. The red

immobiliser warning light should illuminatefor 3 seconds then extinguish.

NOTE- using the XR25, check that the injection compu-

ter has been correctly programmed with thecode. Bargraph 2 RH side (immobiliser) should be extinguished.

After entering

the display should indicate

Injection computer coding has been carriedout.

If the display indicates

the injection computer has still not been coded.


NOTE: it is possible to check that the injectioncomputer has been decoded (in injection fault fin-ding) either:• using the NXR fault finding tool for D7F 702 en-

gines (see the corresponding "injection"Technical Note),• using the XR25 for D7F 700 and D7F 701 en-

gines (see below),

Connect the XR25 to the diagnostic socket. Set theISO selector and enter the injection code: bar-graph 2 RH side (immobiliser) should be illumina-ted.

After entering

code

should appear on the fault finding tool display.Erasure has therefore been successful.

- If the display indicates

this signals that there is a fault on the codedline. In this case, repair and start the procedureagain.

- If bargraph 2 RH side (immobiliser) is extinguis-hed,

and the display indicates (*22),

this indicates that the injection computer code

has not been erased. In this case, check that thesecurity code number is correct and carry outthe procedure again.

82

* 2 2* 2 2

82-8


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REPLACING THE INJECTION COMPUTER

Injection computers are supplied uncoded. Theywill have to be programmed with the system code

when they are fitted.Simply carry out the following operations:- switch on the ignition for several seconds using

the vehicle’s coded key, without starting theengine,

- switch off the ignition, the immobiliser func-tion will be ensured for approximately 10 se-conds afterwards (the red immobiliser warninglight flashes).

NOTE: it is possible to check that starting is pre-

vented using the XR25:

- Ignition off, wait until the red warning lightstarts to flash slowly.Enter command

with the ignition still switched off (bargraph9 LH side illuminates).

- Switch on the ignition, the red immobiliserwarning light flashes more rapidly and it should be impossible to start the vehicle.


11. Check that the system is operating correctlywith both keys.Switch on the ignition and check that the redwarning light illuminates for 3 seconds then

extinguishes and that the vehicle starts.NOTE: it is possible to check that starting isprevented using the XR25.

- Switch off the ignition, wait until the war-ning light flashes (slow flashing).

Enter

- Switch on the ignition and check that it isimpossible to start the vehicle and that the

red warning light flashes (rapid flashing).

12. The procedure is complete. After switchingthe ignition off then on again (for more thantwo seconds), check that the vehicle startsand erase all faults present in the decoderunit.

82

G 0 4 *

G 0 4 *

82-9


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IMPORTANT: when testing an injection computer borrowed from the store (test part), the decoderunit MUST NOT be fed during the operation.

In effect, when the decoder unit is fed, the igni-tion being switched on causes a coded signal to besent from the decoder unit to the injectioncomputer (the code is thereby programmed).

To avoid memorising a code which could disablethe injection computer after the test, the fuse

(+before ignition feed) will have to be removedfrom the decoder unit (fuse with the door lockingsymbol). By doing this, the coded signal will not be sent when the ignition is switched on (thecomputer therefore remains uncoded).

The computer used for the test MUST have thesame part number as the vehicle’s original compu-ter (risk of destroying the test computer).

Check

If the test computer must be returned to the store,it is possible (before removing it) to check that it

was not coded during the test (example: incorrectoperation) either:• using the NXR fault finding tool for D7F 702 en-

gines (see the corresponding "Injection"Technical Note),

• or using the XR25 for D7F 700 and D7F 701 en-gines (see below),

Connect the XR25 to the diagnostic socket. Set theISO selector and enter the injection code: bar-graph 2 RH side (immobiliser) should be illumina-ted.

After entering

code

should appear on the fault finding tool display.

This indicates that the injection computer is notcoded and can be returned to the store.

If bargraph 2 RH side (immobiliser) is extinguishedand after entering

code

appears on the fault finding tool display, this indi-cates that the computer has been programmedwith the immobiliser system code (incorrect ope-ration). In this case, the computer should be deco-

ded before being returned to the store.The decoding procedure involves replacing the ve-hicle’s decoder unit with another decoder unitwith a different code (with its key head electronicunit) and entering the vehicle’s security codeagain (security code number to be requested fromthe local assistance network depending on thecountry, for example Delta Assistance for France,NVSR for the UK by fax only), using the number inthe vehicle key head.

Ignition off, fit a decoder unit coded with a diffe-rent number in place of the vehicle’s original de-coder unit (the procedure will not work with anuncoded decoder unit or coded with the samenumber as the injection).


SPECIAL NOTES FOR TESTING AN INJECTIONCOMPUTER (test part)

82

* 2 2

* 2 2

82-10


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Switch on the ignition, the red immobiliser war-ning light flashes (rapid flashing).

Enter the vehicle security code (number corre-

sponding to the number on the original key).After entering the security code, the red warninglight flashes again.

The display on the XR25 should be

(in injection fault finding). This indicates that the

injection computer has been correctly decoded.

Switch off the ignition, remove the decodedcomputer and return it to the store.

Refit the computer and the decoder unit to thevehicle.

NOTE: When checking the injection using theXR25 on a vehicle without immobiliser, it is nor-mal for bargraph 2 RH side to be illuminated (*22= 2 def = uncoded computer).


82-11


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4. Enter mode

on the XR25 then the security code number

validate with key

- If the code is correct

is displayed on the fault finding tool.

Bargraph 10 LH side extinguishes.It is possible to start the engine.

The vehicle will be protected again either:• approximately 10 minutes after the ignition

is switched off (starts automatically),• or after the battery is disconnected.

- If the code is not correct

is displayed on the tool.

Bargraph 10 LH side remains illuminated.It is still impossible to start the engine.The red immobiliser warning light flashes.Switch off the ignition, then repeat the proce-dure for entering the code.

IMPORTANT: You can make three attempts to en-ter the code. If the code is invalid after the 3 rd at-tempt, you must wait approximately 15 minutes before trying again.

When this time has elapsed, switch the ignitionoff then on again and you can make three moreattempts.

NOTE: this procedure does not decode the injec-tion computer. It only authorises the vehicle to bestarted.

REMINDER: the ignition must be switched off then on again between attempts to enter thecode.


G 4 0 *

*

PROCEDURE FOR ENTERING THE SECURITY CODE

With this immobiliser system, the procedure forentering the security code is managed by the de-

coder unit.The XR25 is used to enter the security code.

The security code can only be entered if the immobiliser system is active. The red warning lightshould flash when the ignition is switched on (ra-pid flashing).

After determining the security code number (fromthe local assistance network, example : DeltaAssistance for France, NVSR for the UK by fax on-

ly), carry out the following operations:

1. Ignition off, the red immobiliser warning lightshould flash (slow flashing).

2. Switch on the ignition, the red immobiliserwarning light should flash more rapidly.

3. Connect the XR25 to the vehicle, set the selec-tor knob to S8.

Enter code

Bargraph 10 LH side should be illuminated(fault finding fiche n ° 56).

D 5 6

82-12


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13063R

Track Allocation

A1 Not used

A2 Antenna / transponder ring codedconnectionA3 Diagnostic socket information (line K)A4 Diagnostic socket information (line L)A5 Red immobiliser warning lightA6 Coded information to injection computerA7 + after ignition feedA8 EarthA9 + before ignition feed

DECODER UNIT CONNECTIONS

82-13


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PRO15084

WIRING DIAGRAM

* connection present or not depending on vehicle

82-14


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FAULT FINDING - INTRODUCTION

SETTING UP XR25 / DECODER UNIT DIALOGUE

- Connect the XR25 to the diagnostic socket.

- Set the ISO selector to S8

- Enter D56 n.56

WARNING:

When carrying out checks using a multimeter, avoid using a test pin on connectors where the size of thetest pin could damage the terminals and lead to a poor contact.

Pay attention to the key head electronic unit part numbers

ERASING THE MEMORY

After repairing the engine immobiliser system, enter G0** on the XR25 to erase the memorised fault.

82-16


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FAULT FINDING - XR25 FICHE

PRESENTATION OF XR25 FICHE N ° 56

FI21856

82-17


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FAULT FINDING - XR25 FICHE

REPRESENTATION OF THE BARGRAPHS

Illuminates when the dialogue is established with the product computer, if it remains

extinguished:- the code does not exist,- there is a line, XR25 or computer fault.

REPRESENTATION OF FAULTS (always on a coloured background)

Illuminated, indicates a fault on the product tested. The associated text defines the fault.

Extinguished, indicates that no fault was detected on the product tested.

REPRESENTATION OF STATUS (always on a white background)

Engine stopped, ignition on, no operator action

The status bargraphs on the fiche are represented in the condition they should be in when the engine isstopped, ignition on, with no operator action.

- If on the fiche the bargraph is shown

- If on the fiche the bargraph is shown

- If on the fiche the bargraph is shown should give as information

either or

Engine running

Extinguished when the function or condition specified on the fiche is no longer being met.

Illuminated when the function or the condition specified on the fiche is being met.

should give as information

should give as information

82-18


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AFTER REPAIR

Bargraph 4 RH side incorrect illumination

+ AFTER IGNITION FEED PRESENT4

Reminder: Under normal operating conditions:- BG 4 RH illuminated when the ignition switch is in + after ignition feed position- BG 4 RH extinguished when the ignition switch is in a position other than +

after ignition feed

NOTES

Fiche n ° 56

Check the condition of the + after ignition feed fuse.

Replace the fuse if necessary.

Ignition on, check for a voltage of + 12 volts on track A7 of the 18 track decoder unit connector.

Is there 12 Volts?

Replace the decoder unit.YES

NO Repair the wiring between track A7 of the 18 track decoder unit connector andthe passenger compartment fuse board.

Carry out a conformity check.Check that the engine immobiliser system operates correctly.

FAULT FINDING - INTERPRETATION OF XR25 BARGRAPHS

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Erase the memorised fault by entering G0** on the XR25.Carry out a conformity check.Check that the engine immobiliser system operates correctly.

AFTER REPAIR

Bargraph 6 RH side illuminated

CODED LINE6

None.NOTES

Fiche n ° 56

Check the continuity and insulation from earth and 12 volts of the wiring between track A6 of the 18track decoder unit connector and the injection computer track.

Repair the wiring if necessary.

Set the XR25 to pulse detection mode (button " G", input using terminal " Vin ").Ignition on, check for pulses on track A6 of the decoder unit connector (test with the connectors for thedecoder unit and the injection computer connected).

Do you note any pulses?

Replace the injection computer.YES

NO Replace the decoder unit.

If bargraph 6RH side is illuminated, check the impact switch.


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Check the continuity and insulation from earth and 12 volts of the wiring between:

18 track decoder unit connector A2 4 antenna/transponder ring

Repair the wiring if necessary.

v0606.0


Erase the memorised fault by entering G0** on the XR25.Carry out a conformity check.Check that the engine immobiliser system operates correctly.

AFTER REPAIR

Bargraph 7 RH side illuminated or flashing

ANTENNA/TRANSPONDER RING/DECODER UNIT CONNECTIONXR25 aid: *27 = cc.1 short circuit to+ 12 volts

co.0 open circuit

7

None.NOTES

Fiche n ° 56

Ignition switched off, check for a voltage of + 12 volts on track A2 of the decoder unit connector, wiringside (decoder connector disconnected and antenna/transponder ring connector connected).

If there is not 12 volts + before ignition feed, replace the + before ignition feed fuse.

If the fault persists, replace the antenna/transponder ring.

Check that the antenna/transponder ring is correctly fed with earth on track 2 and 12 Volts on track 3 .

Disconnect the 4 track antenna/transponder ring connector.Set the XR25 to pulse detection mode (button " G", input using terminal " Vin ").When the ignition is switched on again, check for a pulse on track A2 of the 18 track decoder unitconnector (test with the decoder unit and the antenna/transponder ring connectors connected).

Is there a pulse when the ignition is switched on?

Replace the antenna/transponder ring.YES

NO Replace the decoder unit.


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Only consult these customer complaints after a complete check using the XR25.NOTES

NO XR25/DECODER UNIT COMMUNICATION

IGNITION ON, THE ENGINE IMMOBILISER WARNING LIGHT FLASHESPERMANENTLY (impossible to start the vehicle)

THE ENGINE IMMOBILISER WARNING LIGHT REMAINS ILLUMINATED (evenwith the ignition switched off) OR REMAINS PERMANENTLY EXTINGUISHED

THE VEHICLE DOES NOT START

Chart 1

Chart 2

Chart 3

Chart 4

FAULT FINDING - CUSTOMER COMPLAINTS

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AFTER REPAIR When communication has been established, deal with any illuminated fault bargraphs.Carry out a conformity check.

Chart 1 NO XR25/DECODER UNIT COMMUNICATION

Lines K and L are shared between several computers, which can disrupt them. If thefault persists, check that the computers are not disrupting lines K and L.NOTES

Ensure that the XR25 is not the cause of the fault by trying to communicate with another computer on thevehicle (air conditioning computer, injection computer...).Check that the ISO selector is in position S8, that you are using XR25 cassette 18 and the correct access code(D56 ).Check the battery voltage ( U > 10.5 volts ). Recharge the battery if necessary.

Ensure that the diagnostic socket is correctly fed.Check and ensure the continuity and insulation of the wiring for tracks A3 and A4 of the decoder unitconnector.

If there is still no dialogue between the XR25 and the decoder unit, replace the decoder unit.

Check that the 18 track decoder unit connector is correctly connected.Check that the decoder unit is correctly fed:- earth on track A8 of the decoder unit connector,- + before ignition feed on track A9 of the decoder unit connector.

Check the condition of the + before ignition feed fuse.Replace the fuse if necessary.

FAULT FINDING - FAULT CHARTS

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AFTER REPAIR Carry out a conformity check.Check that the engine immobiliser system operates correctly.Erase the faults using G0**.

Chart 2 IGNITION ON, THE ENGINE IMMOBILISER WARNING LIGHT FLASHESPERMANENTLY (impossible to start the vehicle)

NoneNOTES

no See Chart 1.

yes

no Replace the fuse if necessary.

yes

Check the condition of theantenna/transponder ring fuse.Is the fuse in good condition?

noSee information on bargraph 4 RH in the

"Fault finding - Interpretationof XR25 bargraphs" section.

yes

no Programme the unit if it is new, otherwisereplace the decoder unit.

Switch on the ignition and check thatbargraph 4 RH is illuminated.Is bargraph 4 RH illuminated ?

yes

A

Switch on the ignition and check that bargraph 19 RH is extinguished.

Is bargraph 19 RH extinguished ?


Switch on the ignition.Connect the XR25.

Use fiche n °56, selector on S8 .Enter D56 .

Is there communication between the XR25and the decoder unit?

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AFTER REPAIR

Chart 2CONT 1

A

yesSee information on bargraph 7D in the "Fault

finding - Interpretationof XR25 bargraphs" section.

no

Switch off the ignition and wait until theimmobiliser warning light flashes

(immobiliser active).Switch the ignition on again and check on

fiche n °56 whether bargraph 7 RH isilluminated.

Is bargraph 7 RH illuminated?

yes Repair or replace the first key.

no

no Replace the decoder unit.

Check the key recognition function.Try to start the vehicle using the second key.

Is it possible to start the vehicle?

yes

B

yes

no Mount the antenna/transponder ringcorrectly.Is the antenna/transponder ring correctly

fixed to the ignition switch?

Test the unit memory by entering #65If "0" is displayed, test OK

If "1" is displayed, fault .Is "0" displayed on the screen?

Carry out a conformity check.Check that the engine immobiliser system operates correctly.Erase the faults using G0**.


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Check the continuity and insulation fromearth and 12 Volts of the wiring between:

2 earth3 +AVC

4 A2

Is the wiring in good condition?

v0606.0


AFTER REPAIR

Chart 2CONT 2

B

no Repair the faulty wiring.decoderbornier

antenna/ transponder ring

yes

yes Replace the antenna/transponder ring.

yes

no Replace the decoder unit.

Check for a voltage of + 12 Volts on track A2of the decoder unit (decoder connector

disconnected and antenna/transponder ringconnector connected).

Is this voltage present?

yes

Replace the key.

Switch off the ignition and wait until theimmobiliser warning light flashes

(immobiliser active).Set the XR25 to pulse detection mode (button

"G",input using terminal " Vin ").

When the ignition is switched on again, checkfor a pulse on track A2 of the decoder unit

(test with the decoder unit and theantenna/transponder ring connectors

connected).Is there a pulse?



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v0606.0


AFTER REPAIR

Chart 3 THE ENGINE IMMOBILISER WARNING LIGHT REMAINS ILLUMINATED(even with the ignition switched off) OR REMAINS PERMANENTLYEXTINGUISHED

Check that the decoder unit has been correctly programmed.NOTES

no Replace the fuse.

yes

Check the condition of the + before ignitionfeed fuse.

Is the fuse in good condition?

no Repair the wiring.Check the continuity and insulation fromearth and 12 Volts of the wiring between

track A5 of the 18 track decoder unitconnector and the instrument panel.

Is the wiring in good condition?

yes

no Replace the instrument panel.

Replace the decoder unit.

yes



Carry out the following tests to determinewhich is the faulty component:

- if the immobiliser warning light is illumina-ted, disconnect the 18 track decoder unitconnector and check that the immobiliserwarning light extinguishes,

- if the immobiliser warning light is extin-guished, reconnect track A5 of the decoderunit connector to the vehicle earth andcheck that the immobiliser warning light il-luminates.

Does the immobiliser warning light illuminateduring the test?

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v0606.0


AFTER REPAIR

Chart 4 THE VEHICLE DOES NOT START

NoneNOTES

no There is an engine fault.

yes

no End of fault finding.There is an impact switch fault. Repair.

Does the fault persist?

yes

no Repair the faulty wiring.

yes

yes Replace the injection computer.

Connect the XR25 and use in its pulsedetection mode (button " G", input using

terminal " Vin ") and check for pulses on trackA6 of the decoder unit (test with the decoder

unit and injection computer connectors

connected).Are there pulses?

Check the condition of the wiring betweentrack A6 of the decoder unit and

the injection computer.Is this correct?

no

Replace the decoder unit or refer to the"Replacing the decoder unit and key set"

section.


Check that bargraph 6 RH is illuminated.Is bargraph 6 RH illuminated ?


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v0606.0


Order ofoperations

Function to bechecked Action Bargraph Display and notes

1 XR25 dialogueD56

(selector onS8)

n.56

2 Code present

3 Decoder unitconformity G70*

X X X

Display of Parts Departmentnumber in 2 sequences

4 Forced protectionmode

Illuminated only aftercommand G04* is entered onthe XR25.Impossible to start when BG 9LH side is illuminated

5 Immobiliser status

Illuminated if immobiliser is ac-tive: switch off the ignition andwait approximately 10 seconds

for BG 10 LH side to illuminate.Extinguished if immobiliser isinactive.

1

If a fault bargraph illuminates, refer to the corresponding fault chart.NOTES

9

10

FAULT FINDING - CHECKING CONFORMITY

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v0606.0



Order ofoperations


6 Presence of key

Illuminated when the ignitionis switched on if it is a codedkey (on condition that the vehi-cle was protected before theignition was switched on, im-mobiliser warning light flas-hing).NOTE : under normal operatingconditions, bargraphs8 RH side, 9 RH side and 10 RHside should be illuminated to-gether.

7 Receipt of key code

Illuminated when the ignitionis switched on if it is a correctlyformatted coded key (on condi-tion that the vehicle was pro-tected before the ignition wasswitched on, immobiliser war-ning light flashing).NOTE : under normal operatingconditions, bargraphs8 RH side, 9 RH side and 10 RHside should be illuminated to-gether.

8 Valid key code

Illuminated when the ignitionis switched on if a coded keyhas the correct format and thecorrect code (on condition thatthe vehicle was protected be-fore the ignition was switchedon, immobiliser warning lightflashing).NOTE : under normal operatingconditions, bargraphs8 RH side, 9 RH side and 10 RH

side should be illuminated to-gether.

8

9

10


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v0606.0



Order ofoperations


9Key programming notcarried outinformation

Illuminated if programmingnot carried out (key).

10Key programming notlocked information

Illuminated if programmingnot locked (key).

G60*: changes to 1 when calibration has been completed.

11

Sending security codeentry blockinginformation

19

19

20


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v0606.0


FAULT FINDING - AID

ADDITIONAL CHECKS

COMMAND MODES G--*

To use this function, enter G on the XR25, then the number of the command chosen, followed by a star.

04 Forced protection mode: activates the engine immobiliser function even if the key is correct, whichallows starting prevention to be checked. Bargraph 9 left hand side should illuminate.This command should be entered when the ignition is switched off and the engine immobiliser isactive.IMPORTANT : switching off the ignition cancels this command.

05 Immobiliser warning light control (illuminates the immobiliser warning light for 3 seconds).

13 End of fault finding.39 Transponder line.

40 Introduction of security code (bargraph 10 left hand side should be illuminated and the ignitionshould be on).This command mode can be used to enter the security code, but does not allow decoding of theinjection computer or the coded solenoid valve.Enter the vehicle’s security code number on the XR25 and validate using button "*".If the code number is correct, "bon" is displayed on the XR25 and bargraph 10 left hand sideextinguishes.If the code number is not correct, "deF" is displayed on the XR25 and bargraph 10 left hand side

remains illuminated.IMPORTANT : you are entitled to make 3 attempts to enter the code. If the code is invalid after the3rd attempt, you must wait for approximately 15 minutes before trying again (between eachattempt to enter the code, the ignition must be switched off then on again).

47 Courtesy light timing configuration:- G 47 * 0 * = cancel courtesy light timing.- G 47 * 1 * = activate courtesy light timing.

70 Read Parts Department number (decoder unit part number).

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INSTRUMENT PANELInstrument panel 83

This new instrument panel is different to the pre-vious one as it has a fuel level display using bar-graphs instead of points.

The low fuel level warning light is now locatedabove the "fuel pump" symbol.

CONNECTIONS (new lever connector)

15139R

Track Allocation

1 + before ignition feed2 Earth3 Not used4 + side lights5 Door switch6 + after ignition feed7 Speed information8 Not used9 Rear fog light information*

10 Fuel level information11 Fuel gauge earth

12 ADAC sequence button(at end of windscreen wiper stalk)13 Not used14 Not used15 Not used

* This information activates the lights on remin-der buzzer if the rear fog light button is tiltedwhen the door is opened when the ignition isswitched on.

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INSTRUMENT PANELStrip of warning lights on the dashboard 83

This new strip of warning lights has two rows of removable bulbs.

MOST COMPLETE CONNECTIONS (new leverconnector)

Track Allocation

1 Seat belt warning light2 Brake warning light

3 Air bag warning light4 ABS warning light5 Oil pressure warning light6 Red immobiliser warning light7 + before ignition feed8 Indicator tell-tale light9 Front fog lights tell-tale light

10 Heated rear screen tell-tale light11 Coolant temperature warning light12 Earth13 Side lights tell-tale light14 Battery charge warning light15 Dipped headlight tell-tale light

Track Allocation

16 Catalytic converter fault warning light17 Injection warning light (depending on

vehicle)18 Electric power assisted steering tell-tale

light19 Not used20 Antipollution warning light21 Not used22 Not used23 Not used24 Not used

25 Main beam headlight tell-tale light26 Rear fog light tell-tale light27 Not used28 + after ignition feed29 Not used30 Not used

15138R

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RADIOSpecial notes 86

TWINGO phase II vehicles can be equipped with afactory-fitted single CD stereo with four outputloudspeakers.

If the vehicle is only equipped with two loudspea-kers at the front, only these two outlets are used.

If the front loudspeakers do not work, check thatthe "Fader" radio function (balance of sound bet-ween the front and rear) is oriented to the front.

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ELECTRICAL ASSISTANCE EQUIPMENTRelay mounting 87

Relay mounting under steering column

To remove this relay mounting, release the pedalmounting clip (A) and push the assembly upwards

to release the pin (B).

15140R

Allocation of relays (depending on equipment)1 Rear fog light relay2 Front windscreen wiper timer3 Starter motor relay (AT)4 Central flasher unit5 Automatic clutch buzzer (depending on

equipment)

Relay mounting on fuse board

For vehicles equipped with front fog lights, twoadditional relays connected to this function are lo-

cated near the fuse board.

15136R

Allocation of relays (depending on equipment)1 Additional rear fog light relay2 Front fog lights relay

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WIRING Air bags and seat belt pretensioners 88

These vehicles are equipped with a new passive safety system consisting of:- a driver’s front air bag with a new inflatable cushion (marked SRP ),- a passenger’s front air bag (depending on equipment) with a new inflatable cushion (marked SRP ),- front pretensioners (unchanged),

- special front seat belts with the new programmed restraint system ( SRP ),- a special computer for this assembly (30 or 50 tracks depending on equipment),- a driver’s side air bag (depending on equipment) with an impact sensor under the inner sill carpet on the

same side,- a passenger’s side air bag (depending on equipment) with an impact sensor under the inner sill carpet on

the same side.

IMPORTANT

With this set-up (SRP front air bags), the operation of seat belts is now connected to air bag operation.

The programmed restraint system for the seat belts is not calibrated in the same way whether it is fittedopposite an SRP air bag or not (the part number for each component must be checked before replace-ment).

The following are strictly forbidden :- the fitting of new SRP air bags and / or their associated special seat belts to vehicles originally

equipped with the previous system,- the fitting of components corresponding to an old system to vehicles equipped with this new

restraint system.

NOTE: for more details on the new SRP seat belts, see the corresponding bodywork Technical Note.

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GENERAL

• The programmed restraint system (SRP ) limitsthe force of the seat belt against the body.

MAB11197S

All operations on the air bag and pretensionersystems must be carried out by qualified, trainedpersonnel.

These are additional safety features.

In the event of a frontal impact of sufficientforce:

• The front seat belts restrain the driver and thepassenger.

• The pretensioners tighten the front seat belts,so that they are flattened against the body ,

• The air bags inflate:- from the centre of the steering wheel to pro-

tect the driver’s head,

- from the dashboard to protect the front pas-senger’s head.

96310-1S

98124S

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In the event of a side impact of sufficient force,the corresponding air bag (impact side) deployson the door side to protect the head and thorax of the seat occupant.

IMPORTANT

- Do not fit covers to the front seats.

- Do not place objects in the area in which the air bag deploys.

- When carrying out an operation to the vehicle’ssill panel (on the side impact sensor, the body-work, the seat belt inertia reel, etc...), the air bag computer must be locked using the XR25.

- For special notes on operations to remove andreplace the seat trim, you must refer to the cor-responding bodywork Technical Note.

15132R

NOTE:

- Vehicles equipped with SRP front air bags areidentified by the labels placed in the lower cor-

ners of the windscreen on each side and by theterm " Airbag SRP " in the centre of the steeringwheel and on the dashboard (depending onequipment).

- Vehicles equipped with side air bags are identi-fied by labels placed in the lower corners of thewindscreen on each side and by the term"Airbag" on the sides of the front seatbacks(depending on equipment).

Whenever the windscreen is replaced, remember

to attach the labels which identify the vehicle as being equipped with air bag(s).

All of these labels are available as a set under partnumber: 77 01 205 442.

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92656R

The XR25 is used for fault finding on the compu-ter.

This allows computer faults or faulty system linesto be detected (see the" Fault finding " section).

NOTE: before every operation, an additional func-tion (G80*) allows the trigger lines to be deactiva-ted, to prevent triggering of the pyrotechnic gasgenerators.

SPECIAL TOOLING

PRESENTATION

XR25

XRBAG TEST KIT (Elé. 1288)

96833R

This is a special tool for testing and fault findingof the air bag and seat belt pretensionerequipment.

It allows electrical measurements to be made onthe various lines of the systems (see the " Faultfinding " section).

IMPORTANT : no measurements may be made onthese systems using an ohmmeter or any otherelectrical measuring equipment: the system may be triggered due to the operating current of themeasuring equipment.

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14328S

This bornier is connected in place of the compu-ter.

Using the XRBAG , it allows all the trigger lines to be checked, computer supply voltage to be mea-sured and forces the air bag warning light on theinstrument panel to illuminate.

The terminals also allow continuity checks on thefault finding, earth (n ° 1), warning light andcomputer supply lines to be carried out (see the"Fault finding " section).

NOTE: the terminals DPP and earth n ° 2 are notcurrently used on this system.

Identification of adaptor output wiring

1 : XRBAG union2 : Not currently usedA : Driver’s air bag linesB : Passenger’s air bag lines (depending on

equipment)C : Passenger pretensioner linesD : Driver’s pretensioner lines

30 TRACK XRBAG ADAPTOR (B40)(for vehicles without side air bags)

14328-1S

This bornier is connected in place of the compu-ter.

Using the XRBAG , it allows all the trigger lines to be checked, computer supply voltage to be mea-sured and forces the air bag warning light on theinstrument panel to illuminate.

The terminals also allow continuity checks on thefault finding, earth (n ° 1), warning light andcomputer supply lines to be carried out (see the"Fault finding " section).

NOTE: terminal DPP is not currently used on thissystem.

Identification of adaptor output wiring

1 : Not currently used2 : Supply and warning lightA : Driver’s pretensioner linesB : Passenger pretensioner linesC : Driver’s air bag linesD : Passenger’s air bag linesE : Driver’s side air bag linesF : Passenger’s side air bag lines

50 TRACK XRBAG ADAPTOR (B50)(for vehicles with side air bags)

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DUMMY IGNITION MODULE

A dummy ignition module in a small red box issupplied in the XRBAG kit.

It has the same electrical specifications as a realignition module and is used to replace the air bagcushion or the pretensioner during fault finding.

It is available from:

Consult your Renault After Sales Head Office

DESTRUCTION EQUIPMENT

In order to avoid any risk of an accident the pyro-technic gas generators for the air bags and pre-

tensioners must be triggered before the vehicle orthe part is scrapped.

Special tool Elé. 1287 must be used.

96832R

Refer to the " Destruction Procedure " section.

IMPORTANT: do not trigger the pretensionerswhich must be returned under warranty for astalk problem. This makes analysis of the compo-nent impossible for the supplier.Return the component in the packaging of thenew one.

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OPERATION OF PRETENSIONERS AND FRONT AIRBAGS

When the ignition is switched on, the system

control warning light illuminates for a few se-conds then extinguishes.

The computer is now on stand-by and will take ac-count of vehicle deceleration due to a signal mea-sured by the integrated electronic decelerometer.

In the event of a frontal impact of sufficient force,this simultaneously triggers the pyrotechnic gene-rators for the two seat belt pretensioners afterconfirmation that an impact has been detected bythe electronic safety sensor.

Under the force of the gas generated by the sys-tem, a piston moves in its cylinder pulling a cableconnected to a corresponding central bucklewhich retracts the seat belt (see the"Pretensioners " section).

If the frontal impact is greater, due to validationof the impact by the electronic safety sensor, thedecelerometer triggers the ignition of the pyrote-chnic gas generators which inflate the driver andpassenger air bags (depending on equipment).

These systems do not trigger in the event of:- a side impact- a rear impact.

When triggered, a pyrotechnic gas generator pro-duces an explosion and a small amount of smoke.

OPERATION OF SIDE AIR BAGS

When the ignition is switched on, the air bag andpretensioner system control warning light illumi-

nates for several seconds then extinguishes.The computer for the air bag and pretensionersystems is now on stand-by, as are the side air bagimpact sensors which are located under the innersill carpet on each side of the vehicle.

In the event of a side impact of sufficient force,the impact sensor located on the side of the im-pact sends a signal to the computer for the air bagand pretensioner systems, after confirmation thatan impact has been detected by the electronic sa-

fety sensor (integrated in the computer). Thecomputer then triggers ignition of the pyrote-chnic gas generators for the seat, which inflatethe air bag (impact side).

The side air bags do not trigger in the event of:- a frontal impact,- a rear impact,- an impact on the opposite side of the vehicle.

When triggered, a pyrotechnic gas generator pro-duces an explosion and a small amount of smoke.

INSTRUMENT PANEL WARNING LIGHT

This warning light is for the pretensioners and theair bags.

It should illuminate for several seconds when theignition is switched on, then extinguish (and re-main extinguished).

If it does not illuminate when the ignition is swit-

ched on or illuminates when the vehicle is beingdriven, this indicates a fault in the system (see the"Fault finding " section).

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SRP COMPUTER

Two types of computer are fitted to these vehi-cles, depending on their equipment:

- a computer with a 30 track yellow connectorfor vehicles without side air bags. This must beconfigured in accordance with the vehicleequipment (see configuration).

- a computer with a 50 track orange connectorfor vehicles with side air bags.

These computers have:- an electronic safety sensor for the front air bags

and pretensioners,- an electronic safety sensor for side air bags

(computer with 50 track orange connector on-

ly),- an electronic decelerometer for front air bags

and pretensioners,- connections with the side electronic sensors lo-

cated in the centre pillars (computer with 50track orange connector only),

- an ignition circuit for the various pyrotechnicsystems,

- energy reserves for the various lines,- a circuit for fault finding and memorising de-

tected faults,- a control circuit for the warning light on the

instrument panel,- a communication interface for K - L via the dia-

gnostic socket.

IMPORTANT: before removing a computer, lock itusing the XR25 and command G80* , ISO selectoron S8 code D49 (fiche n ° 49 for vehicles withoutside air bags or fiche n ° 66 for vehicles with side air bags).When this function is activated, all trigger lines

are inhibited, the air bag warning light on the ins-trument panel and bargraph 14 LH side (for vehi-cles without side air bags) or 12 LH side (for vehi-cles with side air bags) on the XR25 illuminates(new computers are delivered in this state).

Removal

It is located on the tunnel in the centre console. Toaccess it, remove the centre console.

15130R

98716S

Computer removed

30 tr acks w it hout side air bags

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15063S

IMPORTANT

• When the seat belt pretensioners or the air bags trigger, the computer locks itself and illu-

minates the air bag warning light on the instru-ment panel. The computer must therefore bereplaced (certain components lose their nomi-nal specifications after the trigger energy haspassed through them).

• When the computer is replaced, it must be un-locked using the XR25 before it is used (see the"Fault finding " section: Interpretation of bar-graph n ° 14 LH side fiche n ° 49 or 12 LH side fichen ° 66).

50 t racks w i t h si de air bags Removal

For refitting, it must be mounted to the vehicle before the connector is reconnected (tightening

torque: 0.8 daN.m ).The arrow on the computer should point towardsthe front of the vehicle.

After connecting its connector, carry out a checkusing the XR25 and configure it if it does not havea passenger air bag.

If everything is correct, unlock the computer usingcommand G81* (bargraph 14 LH side fiche n ° 49or 12 LH side fiche n ° 66 extinguishes).

Otherwise, see the " Fault finding " section.

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Configuration (computer has 30 track yellowconnector only)

The new computers are delivered configured for

"passenger air bag ".If the vehicle does not have a passenger air bag,the computer will have to be configured as beingwithout a passenger air bag.

Using the XR25 (fiche n ° 49), enter commandmode G21*3* (bargraph 17 LH side should extin-guish after switching the ignition off then onagain).

To reconfigure the computer with passenger air

bag, enter command mode G21*4* (bargraph 17LH side should illuminate after the ignition is swit-ched off then on again).

If the computer configuration does notcorrespond to the vehicle equipment, the air bagwarning light remains illuminated.

NOTE: the feed for the computer and the ignitionmodules is normally supplied by the vehicle’s bat-tery. However, the computer has an energy re-serve capacity in case the battery is disconnectedwhen an impact takes place.

IMPORTANT

• When carrying out an operation below the ve-hicle (exhaust, bodywork, etc.), do not use ahammer or transfer impact forces to the floorof the vehicle without having locked thecomputer using the XR25 and command G80*

(ISO selector on S8 code D49 fiche n° 49 for ve-hicles without side air bags or fiche n ° 66 for

vehicles with side air bags.

• When installing an electrical accessory in AfterSales (speaker, alarm or other equipmentwhich might generate a magnetic field), thisshould not be fitted near the computer for theair bag(s) / pretensioners.

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SIDE IMPACT SENSORS(depending on equipment)

IMPORTANT

Before removing a side impact sensor, lock thecomputer using the XR25 and command G80* (ISOselector on S8 code D49 fiche n ° 66).When this function is activated, all trigger linesare inhibited, the air bag warning light on the ins-trument panel and bargraph 12 LH side on theXR25 illuminate.

RemovalThey are located on each side behind the carpetunder the inner sill trim.

To access:- remove the inner sill trim,- remove the two seat mounting bolts, door side,- slide the carpet under the seat runner to re-

lease the sensor,- disconnect the sensor and remove it (two

bolts).

Sensor r emo ved

IMPORTANT

• When a side air bag triggers, the computerlocks and illuminates the air bag warning light

on the instrument panel. The side impact sen-sor and the computer must therefore be repla-ced (certain components lose their nominalspecifications after the trigger energy has pas-sed through them).

• When replacing a computer, it must be un-locked using the XR25 before it is used (see thefault finding section: interpretation of bar-graph 12 LH side ).

15061S

15124R

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Refitting

To refit it, position the sensor using its lug andmount it on the vehicle before reconnecting its

connector (tightening torque: 0.8 daN.m ).After connecting its connector, carry out a checkusing the XR25.

If everything is correct, unlock the computer usingcommand G81* (bargraph 12 LH side extin-guishes).

Otherwise, see the "Fault finding" section .

Connection

Track Allocation

1 Sensor feed2 Earth3 Not used

OPERATIONS ON THE TRIGGER WIRING

If a fault is noted in the wiring, the componentmust be replaced - no repair may be carried out.

This safety device will not withstand anyconventional repair operation to the wiring orconnectors.

IMPORTANT: when fitting new wiring, ensurethat it is not damaged and that its original cleanli-ness is observed.

SEAT BELT PRETENSIONERS

Description

They are mounted to the side of the front seats.

96438S

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11486S


A pretensioner consists of:- a special seat belt buckle (A),- a pyrotechnic gas generator with ignition mo-

dule (B).

DI8801R

When it is triggered, the system can retract the

buckle up to 70 mm (maximum).

DI8802

The pretensioner components cannot beseparated.

NOTE: this system is operational after the ignitionis switched on.

Special notes

The seat belt stalk on the driver’s side has an elec-tric switch which signals via the warning light on

the instrument panel, that the seat belt is not bu-ckled.

To unclip the connector, insert a 0.25 mm shim asindicated on the diagram to free the clip from theconnector then disconnect it by pulling the cable.

To refit, simply reconnect the wiring to the stalk

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Removal Refitting

Observe the routing and the wiring mountingpoints under the seat.

On the pretensioner side, firmly snap-fit theconnector (C) (stiff connection).

After replacing the faulty components andreconnecting the connectors, carry out a checkusing the XR25 (fiche n ° 49 for vehicles withoutside air bags or fiche n ° 66 for vehicles with side air bags).

If everything is correct, unlock the computer usingcommand G81* .


IMPORTANT: it is forbidden to:- handle the pyrotechnic systems (pretensioner

or air bag) near a source of heat or a flame;there is a risk that they may be triggered,

- make measurements on these systems with anohmmeter or other electrical measuringequipment; the systems may be triggered dueto the operating current of the measuringequipment.

IMPORTANT

Before removing a pretensioner, lock the compu-ter using the XR25 and command G80* (ISO selec-tor on S8 code D49 ) (fiche n ° 49 for vehicles wi-thout side air bags or fiche n ° 66 for vehicles withside air bags).

When this function is activated, all trigger linesare inhibited, the air bag warning light on the ins-trument panel and bargraph 14 LH side (fault fin-ding fiche n ° 49) or 12 LH side (fault finding fichen ° 66) on the XR25 illuminate.

Remove:- the pretensioner connector located under the

front seat,- the pretensioner assembly, after removing its

protective trim.

IMPORTANT: before scrapping a non-triggered

pretensioner, it MUST be destroyed in accordancewith the method (except components to be retur-ned under warranty), see the " Destruction proce-dure " section.

REMINDER: when the pretensioners or air bagsare triggered, the computer locks and illuminatesthe air bag warning light on the instrument panel.The computer must therefore be replaced (certaincomponents lose their nominal specifications af-ter the trigger energy has passed through them).

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SRP SEAT BELTS

The front seat belts are fitted with a newprogrammed restraint system ( SRP ).

With this set-up, the operation of the seat belts isnow linked to the operation of the front air bag.

The programmed restraint system for the seat belts is not calibrated in the same way, whetherthey are fitted opposite an SRP front air bag ornot.

IMPORTANT

If the vehicle is fitted with front air bags bearingthe term " SRP ", the opposite seat belt MUST havethe "airbag SRP " symbol on its label.

If the vehicle is not equipped with front air bags bearing the term " SRP ", the opposite seat beltMUST NOT have the " airbag SRP " symbol on its label (the part number for each component MUST be checked before replacement).

When the pretensioners are triggered, the frontseat belt or belts must be systematically replacedif they were in use when triggering occurred (if there is any doubt about the seat belt it should bereplaced).

The physical forces applied to the catch affect theinertia reel and may damage the reel mechanism.

DRIVER’S FRONT AIR BAG SRP

The driver’s front air bag is equipped with a newinflatable cushion (air bag marked SRP ).

With this set-up, the front air bag is connected tothe seat belt located opposite it.

The calibration of the programmed restraint sys-tem for the seat belt is special and complementaryfor this type of air bag.

Description

It is located in the steering wheel boss.

It consists of:- an air bag,- a pyrotechnic gas generator and ignition mo-

dule.

These components cannot be separated.

The steering wheel cover is torn when the air bagdeploys.

NOTE : this system is operational after the ignitionhas been switched on.

96310-1S

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IMPORTANT: Before removing an air bag, lock thecomputer using the XR25 and command G80* (ISOselector on S8 code D49 fiche n ° 49 for vehicles wi-thout side air bags or fiche n ° 66 for vehicles withside air bags). When this function is activated, alltrigger lines are inhibited, the air bag warninglight on the instrument panel and bargraph 14 LHside (fault finding fiche n ° 49) or 12 LH side (faultfinding fiche n ° 66) on the XR25 illuminate.

Removal

IMPORTANT: it is forbidden to :- handle the pyrotechnic systems (pretensioner

or air bag) near a source of heat or a flame;they may be triggered,

- make measurements on these systems with anohmmeter or other electrical measuringequipment ; the systems may be triggered dueto the operating current of the measuringequipment.

IMPORTANT: before removing the steeringwheel, the air bag connector MUST be disconnec-ted (D).

The air bag has a connector which short circuitswhen it is disconnected to prevent incorrect trig-gering.

Remove the air bag by removing its two torx bolts behind the steering wheel and disconnect itsconnector (D).

IMPORTANT: before scrapping an untriggered air bag, it MUST be destroyed in accordance with themethod, see the " Destruction procedure " section.


15126R

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Refitting

IMPORTANT: when replacing an air bag on thesevehicles, the spare part MUST bear the term " air-bag SRP ".

Reconnect the air bag and mount it on the stee-ring wheel (tightening torque: 0.5 daN.m ).

Cushion side, firmly snap-fit the connector (D)(stiff connection).

After replacing the faulty components and re-connecting the connectors, carry out a check usingthe XR25 (fiche n ° 49 for vehicles without side air bags or fiche n ° 66 for vehicles with side air bags).



IMPORTANT: Before removing an air bag, lock the

computer using the XR25 and command G80* (ISOselector on S8 code D49, fiche n ° 49 for vehicleswithout side air bags or fiche n ° 66 for vehicleswith side air bags). When this function is activa-ted, all trigger lines are inhibited, the air bag war-ning light on the instrument panel and bar-graph 14 LH side (fault finding fiche n ° 49) or 12LH side (fault finding fiche n ° 66) on the XR25 illu-minate.

ROTARY SWITCH

The rotary switch ensures the electrical connec-tion between the steering column and the stee-

ring wheel.The switch is a strip with conducting tracks (air bag) which are long enough to allow the steeringwheel to be rotated 2.5 times (full lock plus an ex-tra amount for safety) to each side.

Removal

IMPORTANT: the pyrotechnic systems (pretensio-ners or air bags) must not be handled near asource of heat or a flame; they may be triggered.

IMPORTANT: when removing the steering wheel,the air bag connector (D) MUST be disconnected.The air bag has a connector which short circuitswhen it is disconnected to prevent incorrect trig-gering.

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Remove:- the air bag cushion by removing the two torx

bolts behind the steering wheel and disconnectthe connector (D),

- the steering wheel bolt,- the steering wheel after straightening the

wheels,- the half-cowlings.

Disconnect the stalks (windscreen wiper andlights) and the rotary switch connector.

Before removal, the position of the rotary switchmust be marked:- by ensuring the wheels are straight when the

switch is removed so that the strip is positionedin the centre,

- by immobilising the mobile part of the rotary switch with a piece of tape.

Slacken bolt (C) and detach the assembly from thesteering column.

NOTE: the stalks mounting and the rotary switchare a single part (they cannot be separated).When replacing the rotary switch, remove thewindscreen wiper and lights stalks.

15129R

IMPORTANT: If these procedures are not correctlyobserved the systems may not operate correctlyor may be accidentally triggered.

Refitting

Ensure that the wheels are still straight.

Check that the rotary switch is still immobilised before refitting it (otherwise see the centring me-thod below).

Attach the assembly to the steering column andconnect the various connectors.

Complete the refitting procedure.

Replace the steering wheel bolt each time it is re-moved (prebonded bolt) and observe the correct

tightening torque ( 4.5 daN.m ).Reconnect the air bag and mount it on the stee-ring wheel (tightening torque: 0.5 daN.m ).

NOTE: cushion side, firmly connect the connector(D) (stiff connection).

15126R

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After replacing the faulty components and re-connecting the connectors, carry out a check usingthe XR25 (fiche n ° 49 for vehicles without side air bags or fiche n ° 66 for vehicles with side air bags).



Method for centring the rotary switch

Turn the upper section of the rotary switch coun-ter clockwise.

It becomes hard to turn when it is approachingthe extreme position, shown below (do not force).

PRD99529

IMPORTANT

• To avoid damaging the rotary switch, the stee-ring wheel must be immobilised during the

operation.

• If there is any doubt about correct centring,remove the steering wheel to check.

• During operations for removing the steeringassembly, the engine, transmission compo-nents..., which require the steering rack andthe steering column to be separated, the stee-ring wheel MUST be immobilised using the"steering wheel lock " tool.

Then gently turn the upper section of the compo-nent clockwise and check that the rotary switch isin the position shown below.

PRD99530

Once again, turn the component clockwise twiceand after this, ensure that the rotary switch is inthe position described earlier.

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PASSENGER’S FRONT AIR BAG MODULE

The passenger’s front air bag is equipped with anew inflatable cushion (front module marked

SRP).

With this set-up, the air bag is connected to theseat belt located opposite it.

The calibration of the programmed restraint sys-tem for the seat belt is special and complementaryfor this type of air bag.

NOTE: the passenger’s front air bag module onthese vehicles only has one pyrotechnic gas gene-rator.

Description

It is mounted in the dashboard opposite the frontpassenger.

It consists of:- an inflatable cushion,- a pyrotechnic generator and ignition module.

98124S

The air bag module components cannot be sepa-

rated.

NOTE: this system is operational after the ignitionhas been switched on.

15127R

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IMPORTANT: the dashboard must be systematical-ly replaced when the passenger’s front air bagmodule is triggered, as it deforms and damagesthe mountings.

Remember to attach the label to the side of thenew dashboard forbidding installation of a ba-ckward facing child safety seat in the passengerseat (label available in a set under Part num-ber : 77 01 205 442 ).


Refitting

IMPORTANT: the safety notes for refitting or re-placing the passenger’s front air bag moduleMUST be observed.If these instructions are not followed, it could leadto failure of the system and may even present arisk to the occupants of the vehicle.

Refitting is the reverse of removal. Observe thecorrect tightening torques for the four modulemounting nuts.

After replacing the faulty components and re-connecting the connector, carry out a check usingthe XR25 (fiche n ° 49 for vehicles without side air bags or fiche n ° 66 for vehicles with side air bags).



IMPORTANT

• Remove all foreign bodies (bolts, clips...) whenfitting the air bag module.

• The tightening torque for the module is0.2 daN.m .

• When replacing the air bag module on thesevehicles, the spare part MUST bear the term"Airbag SRP " (a single ignition module).

• On the module side, firmly snap-fit the connec-tor (stiff connection).

• The earth wire (F) for the module must be re-

connected.

• Attach a blue " tamper evident " label, sold un-der part number 77 01 205 356.

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SIDE AIR BAG MODULE

Description

The "side air bag" module is mounted in the seatback of the front seats, on the door side.

It consists of:- an inflatable cushion,- a pyrotechnic gas generator and ignition mo-

dule.

These components cannot be separated.

When it deploys, the air bag tears the module co-ver, the foam and the seat trim.

NOTE: this system is operational after the ignition

has been switched on.

15132R

IMPORTANT: it is forbidden to:- handle the pyrotechnic systems (pretensioners

or air bags) near a source of heat or a flame;there is a risk that they may be triggered,- make measurements on these systems with an

ohmmeter or other electrical measuringequipment; the systems may be triggered dueto the operating current of the measuringequipment.

IMPORTANT: Before removing an air bag, lock thecomputer using the XR25 and command G80* (ISOselector on S8 code D49 fault finding fiche n ° 66 ).

When this function is activated, all trigger linesare inhibited, the air bag warning light on the ins-trument panel and bargraph 12 LH side on theXR25 illuminate (fault finding fiche n ° 66).

Remove the seat of the vehicle.

Strip the seatback (see special notes on removingthe seat trim in the corresponding bodyworkTechnical Note).

Release the air bag module wiring and its earthwire after disconnecting its connector (I) (markthe wiring routing).

15141R

Removal

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NOTE

For fault finding on the ignition module wiring,the retaining clip will have to be released as indi-

cated below to access the connector.

Remove the air bag by removing the two nuts (J).

15131R

IMPORTANT: if the system has not been triggeredand has to be refitted, do not open the air bagmodule, as the bag has to be folded in a particularway.



15066S

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Refitting

15141S

IMPORTANT: seats equipped with side air bagshave special trim and covers. If these componentshave to be replaced, ensure, when ordering thenew components, that they conform to specifica-

tion.

IMPORTANT: If these procedures are not correctlyobserved the systems may not operate correctlyor may be accidentally triggered.

IMPORTANT: when a side air bag module triggers,the deformation and damage to the mountingsmean that the seat must be systematicallyreplaced.

Mount the air bag module to the seatback frame-work (tightening torque: 0.8 daN.m ).

Reposition the wiring under the seat base as itwas originally.

After replacing the faulty components and re-connecting the connectors, carry out a check usingthe XR25 (fiche n ° 66).



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96832R

DESTRUCTION PROCEDURE

In order to avoid any risk of an accident, the pyro-technic gas generators must be triggered before

the vehicle or the part is scrapped.Special tool Elé. 1287 must be used.

PRETENSIONERS

IMPORTANT: do not trigger the pretensionerswhich must be returned under warranty for astalk problem. This makes analysis of the compo-nent impossible for the supplier.Return the component in the packaging of thenew one.

Destruction of the component fitted to the vehi-cle

Move the vehicle outside the workshop.

Connect the destruction tool to the pretensionerafter removing the seat runner cover.

Unroll all the wire supplied with the tool so thatyou are far enough away from the vehicle (ap-proximately 10 metres ) when the unit is triggered.

Connect the two feed wires on the tool to a batte-ry.

After ensuring that no-one is near, carry out thedestruction of the pretensioner by pressing thetwo push buttons on the tool at the same time.

96438S

NOTE: if the unit cannot be triggered (faulty igni-tion module), return the old part in the packagingfrom the new replacement part to Comex viaParts Distribution with a completed parts returnlabel (Service 0429).

Destruction of the component removed from thevehicle

Carry out the procedure in the same way as forthe air bags, within a stack of old tyres (see below).

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4SRP06 1.0

WIRINGAir bags and seat belt pretensioners

FAULT FINDING - INTRODUCTION

CONDITIONS FOR APPLYING THE CHECKS DEFINED IN THIS FAULT FINDING

The checks defined in this fault finding are only to be applied to TWINGO vehicles equipped with the newprogrammed restraint system (SRP) which reduces the pressure of the seat belt on the thorax in the eventof a severe impact.

This new system can be identified by the term "airbag SRP" on the steering wheel boss and on thepassenger air bag module and by a yellow computer connector.

The checks defined in this fault finding are only to be applied when the fault bargraph is permanentlyilluminated, indicating that the fault is present on the vehicle at the time of testing. The computer shouldonly be replaced if there is a computer fault, whether the bargraph is illuminated or flashing.

If the fault is not present but simply memorised, the bargraph flashes and the application of the checks in

the fault finding will not allow the origin of fault memorisation to be located. In this case, only a check of the wiring and the connections for the component concerned should be carried out (it is possible to testthe wiring concerned in fault finding mode to try to obtain illumination of the bargraph).

TOOLING REQUIRED FOR OPERATIONS ON THE AIR BAG AND SEAT BELT PRETENSIONER SYSTEM:

- XR25 (with XR25 cassette n ° 18).- XRBAG, update n ° 4 (with the new 30 track B40 adaptor with the yellow computer base).- Multimeter.

REMINDER:

When carrying out an operation on the air bag / seat belt pretensioner systems, the computer must belocked using XR25 command G80* to prevent incorrect triggering (all trigger lines will be inhibited). Thisoperating mode is indicated by illumination of the warning light on the instrument panel.Without the XR25, switch off the ignition and remove the supply fuse for the system (pretensioner fuse)and wait at least 2 seconds for the reserve energy capacity to discharge.

Never carry out measuring operations on the air bag and pretensioner trigger lines with equipment otherthan the XRBAG.

Before using a dummy ignition module, ensure that the resistance is between 1.8 and 2.5 ohms.

FRONTAIR BAGS 88

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8/17/2019 Twingo Electrica

twingo electrical manual

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