xantia ii - body computer (cph) diagnosis
TRANSCRIPT
diagnosis : body computer (CPH) (with coded key) ELECTRONIC ANTI-THEFT KEY
1 Diagnostic tools
CAUTION : The CPH will not operate during dialogue with the diagnostic instrument.
1.1 ELIT : 4125-T test unit
The tool can be used for
:
• identification of the CPH
• reading the fault codes
• reading of the 15 most recent causes of the alarm going off (CPH2)
• deletion of the 15 most recent causes of the alarm going off (CPH2)
• measuring the parameters
• test the actuators
• initialisation of the keys and remote controls
• initialisation of the ECUs (after replacement)
• initialisation of the body computer with the engine ECU (after replacement of the CPH and the ECU)
• programming of the CPH
1.2 Test connector box : 4109-T
The tool, associated with the electrical harness C 1237 , can be used for reading voltages and resistances.
1.3 PROXIA : 4165-T diagnostic station
The tool can be used for
:
• identification of the CPH
• reading the fault codes
• reading of the 15 most recent causes of the alarm going off (CPH2)
• deletion of the 15 most recent causes of the alarm going off (CPH2)
• measuring the parameters
• test the actuators
• initialisation of the keys and remote controls
• initialisation of the ECUs (after replacement)
• consultation of the electrical wiring diagrams
• initialisation of the body computer with the engine ECU (after replacement of the CPH and the ECU)
• programming of the CPH (configuration)
PAGE 1 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
1.4 LEXIA : 4171-T diagnostic station
The tool can be used for
:
• identification of the CPH
• reading the fault codes
• reading of the 15 most recent causes of the alarm going off (CPH2)
• deletion of the 15 most recent causes of the alarm going off (CPH2)
• measuring the parameters
• test the actuators
• initialisation of the keys and remote controls
• initialisation of the ECUs (after replacement)
• consultation of the electrical wiring diagrams
• initialisation of the body computer with the engine ECU (after replacement of the CPH and the ECU)
• programming of the CPH
2 Fault-finding tables
2.1 Fault list
Fault code 1 :
re-supply to the engine ECU.
Fault code 2 :
no response from the engine ECU.
Fault code 3 :
engine ECU locking problem.
Fault code 4 :
faulty analogue module.
Fault code 5 :
disconnected analogue module.
Fault code 6 :
key not recognised.
Fault code 7 :
non-synchronised remote control.
Fault code 8 :
remote control battery has run out.
PAGE 2 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Fault code 9 :
faulty remote control.
Fault code 10 :
passenger's door locking button not locking.
Fault code 11 :
driver's door locking button not locking.
Fault code 12 :
deadlocking not possible ;
rear RH door open.
Fault code 13 :
deadlocking not possible ;
rear LH door open.
Fault code 14 :
dialogue with the alarm siren not possible.
2.2 Fault code 1 : re-supply to the engine ECU
The engine ECU resupply control line is short-circuited.
The resupply output enables the CPH to resupply the engine ECU with voltage, ignition off, to send it the locking
order.
The resupply and locking of the engine ECU takes place 10 seconds after opening the driver's door, ignition off.
If opening of the driver's door is not detected :
resupply and locking of the engine ECU will take place 5 minutes after the ignition is switched off.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Engine ECU
connection ;
double r
elay or r
esupply
relay (de
pending
on engin
e).
Connected. 7 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
Refer to the
relevant diagram
relating to the
vehicle engine.
Diagnostic
equipment :
Ignition on :
PAGE 3 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Ignition off ,
Check that the
engine ECU is
correctly
resupplied if the
resupply takes
place via a relay.
Disconnected. Diagnostic
equipment :
Check the
continuity and
insulation of the
control line.
Check the
resupply relay (if
fitted).
2.3 Fault code 2 : no response from the engine ECU
The CPH has not received a response from the engine ECU.
The engine ECU relates its status (locked or unlocked)
:
• each time the ignition is switched on
• each time it receives an order from the CPH (unlocking and locking)
If the engine ECU does not understand or accept the CPH order, it replies with an error message (see fault 3 ).
CAUTION : The engine ECU can only respond if it is correctly supplied .
First and foremost check the ECU supply with the ignition on, and its resupply with the ignition off when locking (
PAGE 4 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
see fault 1 ).
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Engine ECU
connection :
engine
ECU to
CPH dial
ogue.
Connected. 19 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
Refer to the
relevant diagram
relating to the
vehicle engine.
Diagnostic
equipment :
With engine
warning lamp on
(with ignition on) :
Without engine
warning lamp or
warning lamp off :
The logical state
of the line can
also be checked ;
Ignition off ,
Disconnected. Diagnostic
PAGE 5 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
equipment :
Check the
continuity and
isolation of the
line between the
engine ECU and
the CPH .
N.B. : Depending on the engine, this line can also be used by the injection ECU to control the engine diagnostic
warning lamp in the instrument panel.
CAUTION : The fault may appear if the CPH .
Check the + after ignition information (see chapter 3 ).
2.4 Fault code 3 : engine ECU locking problem
The engine ECU responds to the CPH command with a fault message.
The engine ECU relates its status (locked or unlocked)
:
• each time the ignition is switched on
• each time it receives an order from the CPH (unlocking, locking or initialising)
If the engine ECU does not understand or accept the CPH order, it replies with an error message.
If the fault occurs when trying to unlock on switching on the ignition :
check the compatibility of the CPH/engine ECU/vehicle.
If one of the components comes from another vehicle :
the engine ECU can not recognise the code used by the CPH.
If the fault occurs when initialising the engine ECU :
ensure that the engine ECU is new and is compatible with the transponder anti-theft function.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
PAGE 6 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Engine ECU
connection :
CPH to
engine E
CU dialo
gue.
Connected. 6 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
Refer to the
relevant diagram
relating to the
vehicle engine.
Diagnostic
equipment :
U = U battery
(except when the
CPH is sending
locking and
unlocking orders).
Ignition off ,
Disconnected. Diagnostic
equipment :
Check the
continuity and
isolation of the
line between the
engine ECU and
the CPH.
2.5 Fault code 4 : faulty analogue module
The transponder aerial is faulty.
Check that the aerial is the right one for.
Refer to section 4.1.1.
2.6 Fault code 5 :
PAGE 7 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
disconnected analogue module
The CPH has not received a reply from the transponder aerial.
Check that the module is properly connected.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Aerial supply. Connected. 12 - 21 ( 26 -way
yellow).
5 - 1. Diagnostic
equipment :
U = U battery.
Disconnected. 12. 5. Diagnostic
equipment :
Check the
continuity and
isolation of the
line between the
analogue module
and the CPH.
Clock. Connected. 23 - 21 ( 26 -way
yellow).
4 - 1. Diagnostic
equipment :
U • 11,2 V.
On switching off
the ignition, there
will be variations
in the voltage
along the line :
Disconnected. 23. 4. Diagnostic
equipment :
Check the
continuity and
isolation of the
line between the
analogue module
and the CPH.
CPH/aerial
dialogue.
Connected. 8 - 21 ( 26 -way
yellow).
3 - 1. Diagnostic
equipment :
PAGE 8 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
U • 10,1 V.
On switching off
the ignition, there
will be variations
in the voltage
along the line :
Disconnected. 8. 3. Diagnostic
equipment :
Check the
continuity and
isolation of the
line between the
analogue module
and the CPH.
2.7 Fault code 6 : key not recognised
The electronic component incorporated in the coded key contains 2 types of code
:
• a fixed identification code
• an authentication code which changes each time the ignition is switched on
2.7.1 Invalid identification code
The CPH has not recognised the key identification code
:
• check that the key is the right one for the vehicle
• initialise the keys
2.7.2 Identification code not received
The CPH has not recognised the key identification code.
This code is only used for the key-in-ignition audible warning ,
when switching off ignition.
If the fault is not accompanied by an authentication defect code :
PAGE 9 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
the key is faulty.
CAUTION : This fault occurs systematically on opening the driver's door when there is no key in the ignition
.
Ignore the fault if the key is not in the ignition.
2.7.3 Invalid authentication code
The CPH has not recognised the key authentication code.
The key is faulty or hasn't been initialised.
Initialise the keys.
URGENT : It is necessary to have available both the vehicle access code, recorded on the
customer's confidential card, as well as all the vehicle keys.
The initialisation procedure is interrupted once a faulty key is detected.
Repeat the initialisation procedure without the faulty key.
2.7.4 Authentication code not received
The CPH has not received the key authentication code.
The key is faulty or hasn't been initialised.
2.8 Fault code 7 : non-synchronised remote control
The central locking remote control becomes desynchronised if pressed repeatedly while outside its operational
range.
Resynchronise it.
Resynchronisation procedure
:
• switch on the ignition
• press one of the remote control buttons
2.9 Fault code 8 : remote control battery has run out
The central locking remote control battery is discharged.
PAGE 10 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
The door open warning lamp flashes to signify a fault.
Replace the battery.
2.10 Fault code 9 : faulty remote control
The remote control signal has been disrupted.
Try again to lock/unlock the vehicle to see whether the fault reoccurs.
2.11 Fault code 10 : passenger's door locking button not locking
Fault of having received the confirmation of the locked state of the passenger door :
the CPH has unlocked the doors on the issue of the locking command.
This fault may simply be the result of a locking command received with the door still open.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Locking button
switch .
In the fr
ont pass
enger's
door loc
k (6207).
Connected. 5 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
Diagnostic
equipment :
Locking button
down :
Locking button up
:
Disconnected. Diagnostic
equipment :
Locking button
down :
PAGE 11 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
2.12 Fault code 11 : driver's door locking button not locking
Fault of having received the confirmation of the locked state of the passenger door :
the CPH has unlocked the doors on the issue of the locking command.
This fault may simply be the result of a locking command received with the door still open.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Locking button
switch .
In the d
river's d
oor lock
(6202).
Connected. 18 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
Diagnostic
equipment :
Locking button
down :
Locking button up
:
Disconnected. Diagnostic
equipment :
Locking button
down :
2.13 Fault code 12 :
PAGE 12 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
deadlocking not possible ; rear RH door open
This fault occurs when a locking command is transmitted but the rear door remains open.
For vehicles equipped with deadlocks, it is therefore not possible to activate the deadlocks.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Rear RH door
open switch .
In the lo
ck.
Connected. 14 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
Diagnostic
equipment :
Door open :
Rear RH door
closed :
Disconnected. Diagnostic
equipment :
Door open :
2.14 Fault code 13 : deadlocking not possible ; rear LH door open
This fault occurs when a locking command is transmitted but the rear door remains open.
For vehicles equipped with deadlocks, it is therefore not possible to activate the deadlocks.
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Rear LH door
open switch .
In the lo
Connected. 2 ( 26 -way
yellow) -
13 ( 15 -way blac
Diagnostic
equipment :
PAGE 13 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
ck. k).
Door open :
Rear LH door
closed :
Disconnected. Diagnostic
equipment :
Door open :
2.15 Fault code 14 : dialogue with the alarm siren not possible
The CPH has been unable to establish a dialogue with the alarm siren.
Refer to section 6.1.2.
CAUTION : For a CPH 2 fitted on a vehicle without an alarm, this fault will be systematic.
3 Electrical checks
3.1 Supplies to the CPH
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Supply to the
CPH +
permanent.
Connected. 4 - 13 ( 15 -way
black).
Fuse F25. Diagnostic
equipment :
U = 12 volts.
Supply to the
CPH + permanent
outputs.
1 - 13 ( 15 -way
black).
Fuse F15. Diagnostic
equipment :
PAGE 14 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
U = 12 volts.
3.2 Ignition on information
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Connected. 5 - 13 ( 15 -way
black).
Fuse F2. Diagnostic
equipment :
Ignition on :
4 Transponder function
4.1 Testing the components
4.1.1 Transponder analogue module
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Transponder
analogue module
(8220) .
Aro
und
the
igni
tion
key
barr
el.
Connected. 12 - 21 ( 26 -way
yellow).
5 - 1 ( 6 -way
black).
Diagnostic
equipment :
Check the
component supply
voltage :
Disconnected. Diagnostic
equipment :
Check the
continuity and
PAGE 15 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
insulation of the
wires between
terminals 12 and
5 .
Connected. Clock signal :
23 - 21 ( 26 -way
yellow).
4 - 1 ( 6 -way
black).
Diagnostic
equipment :
Driver's door
open :
Disconnected. 23. 4. Diagnostic
equipment :
Check the
continuity and
insulation of the
wires between
terminals 23 and
4.
Connected. CPH/aerial
dialogue 8 - 21
( 26 -way yellow).
3 - 1. Diagnostic
equipment :
U đ 10,1 volts.
Driver's door
open :
PAGE 16 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Disconnected. 8. 3. Diagnostic
equipment :
Check the
continuity and
isolation of the
line between the
analogue module
and the CPH.
N.B. : Harness C.1234 for use in VALEO and SIEMENS transponder control units may be used to check
the analogue module :
XANTIA.
4.1.2 Key-in-ignition audible warning
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Key-in-ignition
audible warning
(0004).
Connected. Initiate an
actuation
sequence by
means of a
diagnostic tool :
Disconnected. 7 ( 15 -way
black).
26 ( 26 -way
blue).
If not :
Earth terminal 7 :
If not :
Connected. 7 - 13 ( 15 -way 26 - 7 ( 26 -way Diagnostic
PAGE 17 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
black). blue). equipment :
Checking the
audible warning
command signal :
U đ 0 volt ,
U đ U battery ,
U đ 0 volt ,
Initiate an
actuation
sequence by
means of a
diagnostic tool :
4.1.3 Instrument cluster warning lamp
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Unlocking
warning lamp
(0004).
Connected. Initiate an
actuation
sequence by
PAGE 18 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
means of a
diagnostic tool :
Disconnected. 26 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
8 ( 26 -way blue). If not :
26. 8. If not :
Check the
continuity and
insulation of the
wires between
terminals 26 and
8.
Connected. 26 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
8 - 7 ( 26 -way
blue).
Diagnostic
equipment :
Checking the
warning lamp
signal.
Ignition on ,
4.1.4 Open driver's door switch
PAGE 19 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Driver's door
switch (6202) .
In
doo
r's l
ock.
Connected. 1 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
6 - 4 ( 9 -way
brown).
Diagnostic
equipment :
Door open :
Driver's door
closed :
Disconnected. Diagnostic
equipment :
Door closed :
4.2 Fault-finding tables
4.2.1 Symptom :
the vehicle will not start
Symptom. Remedy.
1st case. The vehicle can not be
started with any of the keys.
Refer to table 1.
2nd case. The vehicle can not be
started with one of the keys,
but can be started with the
others.
The key is faulty .
PAGE 20 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
4.2.2 Table 1
Checks. Check result. Consequences.
1. Driver's door open .
Switch the ignition on,
then off (leave the ke
y in the ignition).
Ignition off :
the audible warning e
mits an intermittent so
und
The CPH has
recognised the key
identification code .
If not. Proceed to table 2.
2. Switch on the ignition. The warning lamp
lights up (for đ 1
second).
Check the petrol level
or any mechanical
problem.
The warning lamp
blinks at 2,5 Hz ,
the audible warning e
mits a continuous sou
nd
Proceed to check N°
3.
3. Check the continuity
and isolation of lines
CE and CS (*) .
Switch on the ignition
,
check the voltage of li
ne CE.
Brief drop in voltage. Proceed to check N°
4.
If not. Check the supply to
the engine ECU.
4. Enter the access code
(initialisation of the
engine management
ECU).
Access code rejected. Check that the body
computer does not
come from another
vehicle.
Access code accepted
.
Initialisation complete
d or
upted
ue.
Check that the engine
management ECU has
been properly
initialised (in the case
of a new engine ECU)
.
N.B. : CE :
engine ECU's serial input line .
The CE line is located between the engine ECU and terminal 19 of the body computer's yellow 26 -way con
PAGE 21 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
nector (terminal 19 of the test connector box) .
CS :
engine ECU's serial output line .
The CS line is located between the engine ECU and terminal 6 of the body computer's yellow 26 -way conn
ector (terminal 6 of the test connector box).
4.2.3 Checking the initialisation of an engine management ECU
Before carrying out the checks
:
• driver's door open
• ignition off
• diagnostic tool disconnected
The following operations should be carried out
:
• wait 10 seconds
• switch on the ignition :
the warning lamp on the instrument cluster must come on for about one second
• switch off the ignition, then switch it on again :
the warning lamp on the instrument cluster must come on briefly for đ 0,5 seconds
CAUTION : If on each of the 2 occasions the warning lamp comes on briefly, the initialisation has been
unsuccessful.
The engine ECU state can also be checked using the diagnostic tool to read the parameters.
N.B. : This parameter may be affected if an injection ECU warning lamp on the instrument panel is
connected to the dialogue line .
Perform a test with the ignition off if the following message appears :
"no reply".
4.2.4 Table 2
Checks. Check result. Consequences.
1. Driver's door open .
Switch the ignition on,
then off (leave the ke
y in the ignition).
The audible warning is
not activated.
Proceed to check N°
2.
2. Component(s) to be
checked :
key-in-ignition audible
warning.
Component working
correctly.
Proceed to check N°
3.
PAGE 22 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Faulty component(s). Repair or replace the
faulty unit .
3. Component(s) to be
checked :
driver's door switch.
Component working
correctly.
Proceed to check N°
4.
Faulty component(s). Repair or replace the
faulty unit .
4. Component(s) to be
checked :
transponder analogue
module.
Component working
correctly.
Proceed to check N°
5.
Faulty component(s). Repair or replace the
faulty unit .
5. Initialise the keys. Access code rejected. Check that the CPH
has not been
replaced.
Access code accepted
,
initialisation not possi
ble.
Faulty component(s) :
5 Locking/unlocking and deadlocking function
5.1 Testing the components
5.1.1 Locking/unlocking button
Location of
components.
ECU connector. Test connector
box no.
Component
terminals.
Test values.
Locking button .
In t
he
driv
er's
doo
Connected. 18 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
3 ( 9 -way brown)
-
Diagnostic
equipment :
PAGE 23 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
r loc
k (6
202
).
Locking button
down :
Locking button up
:
Disconnected. Diagnostic
equipment :
Locking button
down :
Locking button .
In t
he f
ront
pas
sen
ger'
s do
or l
ock
(62
07).
Connected. 5 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
3 ( 9 -way brown)
-
Diagnostic
equipment :
Locking button
down :
Locking button up
:
PAGE 24 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Disconnected. Diagnostic
equipment :
Locking button
down :
5.1.2 Switches for locking/unlocking with a key (vehicle with deadlocking only)
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Switch for locking
with a key :
in f
ront
left
lock
(62
02)
.
In t
he f
ront
righ
t loc
k (6
207
).
Connected. Locking :
17 ( 26 -way yello
w) -
13 ( 15 -way blac
k).
9 - 4 ( 9 -way
brown).
Diagnostic
equipment :
Key in locking
position :
At rest :
PAGE 25 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Disconnected. Diagnostic
equipment :
Switch for
unlocking with a
key :
in f
ront
left
lock
(62
02)
.
In t
he f
ront
righ
t loc
k (6
207
).
Connected. Unlocking :
4 ( 26 -way yello
w) -
13 ( 15 -way blac
k).
5 - 4 ( 9 -way
brown).
Diagnostic
equipment :
Key in unlocking
position :
At rest :
Disconnected. Diagnostic
equipment :
PAGE 26 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
5.1.3 Locking motors
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Locking motors .
Do
ors
(62
02 -
62
07 -
62
12 -
62
17)
.
Tail
gat
e (6
260
) .
Fu
el fil
ler fl
ap.
Connected. Unlocking :
8 - 14 ( 15 -way b
lack).
Front doors : Diagnostic
equipment :
Disconnected. Rear doors : Diagnostic
equipment :
Connected. Locking :
14 - 8 ( 15 -way b
lack).
Front doors : Diagnostic
equipment :
PAGE 27 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Disconnected. Rear doors : Diagnostic
equipment :
Deadlocking
motors .
Do
ors
(62
02 -
62
07 -
62
12 -
62
17).
Connected. Deadlocks :
11 - 8 ( 15 -way b
lack).
Front doors : Diagnostic
equipment :
Disconnected. Rear doors : Diagnostic
equipment :
5.2 Fault-finding
Close all the doors.
Check that the locking system is working correctly, using the remote control and each of the front door locks ,
then refer to the corresponding chapter.
PAGE 28 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
5.2.1 Symptom :
locking not possible using the key
Symptom. Remedy.
1st case. The vehicle can be locked by
locking one of the doors.
Refer to section 5.1.2.
2nd case. The vehicle can not be locked
from the 2 front doors.
Check :
5.2.2 Symptom :
locking not possible using the remote control
Symptom. Remedy.
1st case. Locking is possible with the
key, but not with the remote
control.
Check :
If not ,
2nd case. Locking not possible. Check :
N.B. : If the battery is discharged, the "door open" warning lamp will flash for 10 seconds at a frequency of
2,5 Hz on switching on the ignition.
PAGE 29 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
5.2.3 Symptom :
immediate locking/unlocking after receiving the command
In this case ,
check
:
• the front door switches .
Refer to section 5.1.1
• the locking buttons .
Refer to section 5.1.4
• the key locking contacts .
Refer to section 5.1.2
• the locking motors .
Refer to section 5.1.3
6 Alarm function (right-hand drive vehicles in Great Britain)
6.1 Testing the components
6.1.1 Alarm LED
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Alarm LED
(8606).
Connected. Initiate an
actuation
sequence by
means of a
diagnostic tool :
Disconnected. 12 ( 15 -way
black).
2 ( 2 -way). If not :
If not :
PAGE 30 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Connected. 12 - 13 ( 15 -way
black).
2 - 1 ( 2 -way). Diagnostic
equipment :
LED on :
6.1.2 Siren
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Siren (8605). Connected. Initiate an
actuation
sequence by
means of a
diagnostic tool :
Disconnected. 10 ( 26 -way
yellow).
3 ( 4 -way). If not ,
If not :
Connected. 10 ( 26 -way
yellow) -
13 ( 15 -way blac
k).
3 - 4 ( 4 -way). Diagnostic
equipment :
PAGE 31 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Initiate an
actuation
sequence by
means of a
diagnostic tool :
6.1.3 Door pillar switches
Location of
components.
ECU connectors. Test connector
box no.
Component
terminals.
Test values.
Driver's door
switch (6202) .
Pa
sse
nge
r's d
oor
cont
act
swit
ch (
620
7).
Connected. 1 - 21 ( 26 -way
yellow) 3 - 21 ( 26
-way yellow).
6 - 4 ( 9 -way
brown).
Diagnostic
equipment :
Rear right door
contact switch
(6217) .
Re
ar l
eft
doo
r co
ntac
t sw
itch
(62
12).
Disconnected. 2 - 21 ( 26 -way
yellow) 14 - 21
( 26 -way yellow).
1 - 3 ( 5 -way
brown).
Diagnostic
equipment :
PAGE 32 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
6.2 Fault-finding
Symptom :
unprompted triggering.
Using the diagnostic tool ,
refer to the list giving the 15 most recent causes of the alarm going off, and check the component which appear
s the most frequently.
The most recent cause of the alarm going off is displayed first (order 1 ).
7 Initialisation procedure (initialisation)
URGENT : All new CPHs or engine ECUs fitted to a vehicle must be initialised .
Once these components have been initialised, they can never be used on a different vehicle.
CAUTION : To perform all of the initialisation procedures, it is necessary to have the access code which is recorded
on the customer's confidential card.
CAUTION : Only select the initialising procedure which relates to the specific case being dealt with .
Example :
in the event that only the CPH has been replaced, only perform an "initialisation of the CPH" and not an "initialisation
of the CPH + engine ECU".
7.1 Initialisation : keys
The initialisation procedure allows the following operations to take place
:
• addition of new keys
• addition of new remote controls
• replacement of keys
• invalidation of lost keys
N.B. : Depending on the diagnostic tool used :
the procedure may begin with either the initialisation of the keys or the initialisation of the remote controls.
CAUTION : The initialisation procedure deletes all the codes (keys and remote controls) from the body
computer's memory.
Use the diagnostic tool ,
select the menu :
PAGE 33 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
"INITIALISATION OF THE KEYS".
Validate.
Enter the access code recorded on the customer's confidential card.
7.1.1 Initialisation :
transponder codes
Enter the number of keys to be initialised.
Validate.
Switch off the ignition (A).
Remove the key from the ignition.
Validate (PROXIA).
Within 15 seconds
:
• insert the key to be initialised into the ignition
• switch on the ignition
Validate (PROXIA).
A message confirms that the ignition key has been correctly initialised (according to the tool, a message will
show the number of keys already initialised or the number of the key to be initialised).
Validate (PROXIA).
Repeat the procedure with the other keys to be initialised (starting with operation A ).
Procedure completed
:
• 1st case :
press the "ENTER" button to return to the initial menu
• 2nd case :
validate with to initialise the remote controls :
see chapter 7.2
N.B. : Initialisation can take place as many times as necessary.
If the initialisation procedure fails
:
• refer to the list of error messages
• press the "ENTER" button to restart the procedure
PAGE 34 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
List of error messages.
Error message. Remedy.
Invalid access code :
ELIT test unit .
Access code rejected :
PROXIA diagnostic station.
The body computer is locked by a different
access code to the one recorded on the
customer's confidential card .
Check that the CPH has not been replaced.
Key already initialised. The key in the ignition has already been
initialised .
Press key (*) to validate
Initialise a different key.
Code not received or ignition switched +
supply problem .
Ignition switched + interrupted.
Period of 15 seconds not respected ,
start the whole process again
If not
key with defective transponder or with no tra
nsponder
Defective antenna
Faulty body computer.
Code not understood .
Lack of dialogue.
The body computer cannot read the key code
correctly .
If none of the keys can be initialised
check that faulty key or transponder analogu
e module is working correctly
Ignition switched "+" present during the
procedure.
Start the whole process again :
adhere to the diagnostic tool instructions reg
arding the presence or not of ignition switche
d +.
7.1.2 Initialisation :
high frequency remote controls
Enter the number of remote controls to be initialised.
N.B. : For a CPH 0 (without remote control), the number of remote controls remains set at 0.
Validate.
Within 15 seconds (A)
:
• press the remote control locking button
• validate (PROXIA)
A message confirms that the remote control has been correctly initialised, as well as the number of remote
controls already initialised (according to the tool, a message confirms the number of the remote control to
be initialised).
PAGE 35 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Validate (PROXIA).
Repeat the procedure for the other remote controls to be initialised (starting with operation A ).
Procedure completed :
press the "ENTER" button to return to the initial menu.
If the initialisation procedure fails
:
• refer to the list of error messages
• press the "ENTER" button to restart the procedure
List of error messages.
Error message. Remedy.
Remote control already initialised. The remote control code has already been
initialised .
Press the "ENTER" button to restart the proc
edure
Repeat the procedure for the other remote c
ontrols to be initialised.
Remote control code not memorised :
ELIT test unit.
One of the remote control buttons was not
pressed within the required 15 seconds :
start the whole process again
peration A )
If not
battery discharged
Faulty remote control
Faulty body computer.
Invalid access code :
ELIT test unit.
Start the whole process again :
enter the access code recorded on the custo
mer's confidential card.
7.2 Initialisation : engine management ECU
New engine ECUs must be initialised .
Initialisation enables the new ECU to recognise the vehicle's ADC code.
CAUTION : When replacing the engine ECU, do not switch off the ignition before disconnecting the ECU.
Use the diagnostic tool ,
select the menu :
"INITIALISATION OF THE ENGINE ECU".
PAGE 36 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Validate.
Enter the access code recorded on the customer's confidential card.
A message confirms that the initialisation procedure has been correctly carried out.
Validate to return to the initial menu.
If the initialisation procedure fails :
refer to the list of error messages.
List of error messages.
Error message. Remedy.
Initialisation interrupted :
PROXIA test unit.
Problem occurs during the initialisation
procedure .
Restart the ECU initialisation procedure
If the problem reoccurs
check that the engine ECU is new and comp
atible with the immobiliser system.
Transponder initialisation fault. No key code is memorised by the body
computer :
initialise the keys before initialising the engin
e ECU.
Invalid access code :
ELIT test unit.
The body computer fitted to the vehicle is
locked by an access code which is different
from the one recorded on the customer's
confidential card .
Check that the body computer does not com
e from another vehicle.
ECU already coded or dialogue fault :
ELIT test unit.
The engine ECU does not reply or does not
accept the code 1111 .
Check that the engine ECU is new and does
not come from another vehicle
Check the conformity of the engine ECU
Check the dialogue lines with the CPH.
Coded ECU 1111 , problem with changing
the code :
ELIT test unit.
The new engine ECU accepts the code 1111
, but not the vehicle ADC code .
Check the conformity of the engine ECU.
Locking fault :
ELIT test unit.
The new engine ECU accepts the ADC code
but does not respond to the CPH locking
command .
Check the resupply control.
Unlocking fault :
ELIT test unit.
The new engine ECU accepts the ADC code
but does not respond to the CPH unlocking
PAGE 37 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
command .
Check the resupply control
Check the conformity of the engine ECU.
7.3 Initialisation : body computer (CPH)
This procedure applies when replacing the CPH with a new CPH, the engine ECU remaining the same.
Use the diagnostic tool ,
select the menu :
"INITIALISATION OF THE CPH".
Validate.
Enter the access code recorded on the customer's confidential card.
Enter the vehicle configuration (see chapter 7.5 ).
Validate.
Initialise the keys and the remote controls (see chapter 7.1 ).
A message confirms that the initialisation procedure has been correctly carried out.
Validate to return to the initial menu.
If the initialisation procedure fails
:
• refer to the list of error messages
• press the "ENTER" button to restart the procedure
List of error messages.
Error message. Remedy.
Transponder initialisation fault. No key code is memorised by the body
computer .
Initialise the keys and the remote controls
Start the whole process again.
Invalid access code :
ELIT test unit.
The body computer fitted to the vehicle is
locked by an access code which is different
from the one recorded on the customer's
confidential card .
Check that the body computer does not com
e from another vehicle.
PAGE 38 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
7.4 Initialisation : body computer and engine management ECU
This procedure applies when replacing the CPH and engine ECU assembly with a new CPH and engine ECU
assembly.
Use the diagnostic tool ,
select the menu :
"INITIALISATION OF THE CPH AND ECU".
Validate.
Enter the access code recorded on the customer's confidential card.
Enter the vehicle configuration (see chapter 7.5 ).
Validate.
Initialise the keys and the remote controls (see chapter 7.1 ).
A message confirms that the initialisation procedure has been correctly carried out.
The CPH initialises the engine ECU (see chapter 7.2 ).
Validate to return to the initial menu.
If the initialisation procedure fails
:
• refer to the list of error messages
• press the "ENTER" button to restart the procedure
CAUTION : If the initialisation procedure has been interrupted :
the CPH has not been initialised .
The warning lamp on the instrument panel is not activated when the ignition is switched on.
Error message :
this procedure successively follows each of the initialisation procedures described in this chapter .
Refer to the fault message tables corresponding to the current stage.
7.5 Initialisation : configuration of the vehicle
This procedure applies when changing the CPH configuration.
The configuration allows the following functions to be activated or deactivated
:
• alarm LED
• deadlocks
PAGE 39 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)
Use the diagnostic tool ,
select the menu :
"PROGRAMMING".
Validate.
Enter the access code recorded on the customer's confidential card.
Validate.
Configuration of the vehicle.
1. Deadlocks .
Alarm .
Pioup.
2. Alarm with deadlocking.
3. Deadlocks .
Without alarm.
4. Without alarm .
Without deadlocking.
5. Alarm .
Without deadlocking.
N.B. : The "Pioup" function warns the driver if one of the doors is open on activating the CPH alarm by briefly
setting off the alarm siren.
PAGE 40 - d4cy03p0 - diagnosis : body computer (CPH) (with coded key)