audi q7 battery terminal engine management

Audi Q7 3.0 l - TDI, Common Rail, (155 kW 171 kW - 6-cylinder) engine code BUN / BUGfrom model year 2007

Audi Q7 Current Flow Diagram No. 4 / 1 Edition 04.2007

Notes:

For information concerning

� Position of relays and fuses

� Multi-pin connections

� Control units and relays

� Earth connections

→ List of Fitting Locations!

For information concerning

� Fault Finding Programs

→ guided fault finding

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Audi Q7 Current Flow Diagram No. 4 / 2

ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = purplege = yellowor = orangers = pink

Battery, terminal 15 voltage supply relay, energy management control unit, battery isolation igniter, fusesA - Battery

J234 - Airbag control unit

J329 - Terminal 15 voltage supply relay

J518 - Entry and start authorisation control unit

J644 - Energy management control unit

N253 - Battery isolation igniter

SD1 - Fuse 1 on fuse holder D





T2au - 2-pin connector, yellow, on battery isolation igniter

T10d - 10-pin connector, blue, coupling station on electronics box, plenum chamber

T20e - 20-pin connector, black, on entry and start authorisation control unit

T46a - 46-pin connector, black, CAN separating connector left

T75 - 75-pin connector, grey, on airbag control unit (USA: white)

B272 - Positive connection (30), in main wiring harness

B273 - Positive connection (15), in main wiring harness

• - CAN bus (data wire)

* - Relay and fuse carrier under driver seat

** - screw connection (31) battery wire before driver seat

# - up to May 2006

## - from June 2006

♦ - up to May 2007

♦♦ - from June 2007


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Starter, alternator, starter motor relay, starter motor relay 2, slave start socketB - Starter

C - Alternator

C1 - Voltage regulator

J53 - Starter motor relay

J695 - Starter motor relay 2

SB6 - Fuse 6 on fuse holder B



T2 - 2-pin connector, black, on alternator

T6m - 6-pin connector, white, coupling station on electronics box, plenum chamber

T10f - 10-pin connector, red, coupling station on electronics box, plenum chamber

TV22 - Terminal 30 wiring junction 2

U6 - Slave start socket

13 - Earth point, on right in engine compartment

18 - Earth point on engine block

D51 - Positive connection 1 (15), in engine compartment wiring

harness

D97 - Connection (50), in engine compartment wiring harness

* - Relay and fuse carrier, electronics box plenum chamber

♦ - up to May 2007


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Automatic glow period control unit, glow plugsJ179 - Automatic glow period control unit

Q10 - Glow plug 1

Q11 - Glow plug 2

Q12 - Glow plug 3

Q13 - Glow plug 4

Q14 - Glow plug 5

Q15 - Glow plug 6

S2 - Fuse in relay plate fuse holder


T6t - 6-pin connector, black, in right engine compartment

D108 - Connection 6, in engine compartment wiring harness


# - up to May 2006

## - from June 2006


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Engine control unit, terminal 30 voltage supply relayJ317 - Terminal 30 voltage supply relay

J623 - Engine control unit

T94 - 94-pin connector, black, on engine control unit

85 - Earth connection 1, in engine compartment wiring harness

609 - Earth point, on right in plenum chamber

B303 - Positive connection 7 (30), in main wiring harness

D50 - Positive connection (30), in engine compartment wiring

harness


harness




harness


** - Screw connection in electronics box in plenum chamber

# - up to May 2006

## - from June 2006

♦ - models with auxiliary heater

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Engine control unitE45 - Cruise control system switch

F125 - Multifunction switch

J518 - Entry and start authorisation control unit

J527 - Steering column electronics control unit




T10c - 10-pin connector, pink, coupling station on electronics box, plenum chamber


T10p - 10-pin connector, black, on gearbox

T16a - 16-pin connector, on steering column electronics control unit

T20e - 20-pin connector, black, on entry and start authorisation control unit

T46a - 46-pin connector, black, CAN separating connector left


B482 - Connection 18, in main wiring harness




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Engine control unit, coolant temperature sender, fuel temperature sender, fuel pressure sender, injector, cylinder 1 - 6G62 - Coolant temperature sender

G81 - Fuel temperature sender

G247 - Fuel pressure sender


N30 - Injector, cylinder 1







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Engine control unit, air mass meter, fuel pressure regulating valve, fuel metering valve, charge air pressure sender, intake air temperature sender, accelerator position senderG31 - Charge air pressure sender

G42 - Intake air temperature sender

G70 - Air mass meter

G79 - Accelerator position sender

G185 - Accelerator position sender 2


N276 - Fuel pressure regulating valve

N290 - Fuel metering valve



T6m - 6-pin connector, white, coupling station on electronics box, plenum chamber

T10e - 10-pin connector, green, coupling station on electronics box, plenum chamber

T10m - 10-pin connector, black, coupling station on electronics box, plenum chamber




# - up to May 2006

## - from June 2006


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Engine control unit, throttle valve module, exhaust gas recirculation valve, exhaust gas recirculation cooler change-over valveJ338 - Throttle valve module


N18 - Exhaust gas recirculation valve

N345 - Exhaust gas recirculation cooler change-over valve





# - up to May 2006

## - from June 2006

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Engine control unit, turbocharger 1 control unit, intake manifold flap motorJ623 - Engine control unit

J724 - Turbocharger 1 control unit




V157 - Intake manifold flap motor

V275 - Intake manifold flap 2 motor

281 - Earth connection 1, in engine harness

609 - Earth point, on right in plenum chamber


# - up to May 2006

## - from June 2006


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Engine control unit, engine speed sender, Hall sender, radiator outlet coolant temperature senderG28 - Engine speed sender

G40 - Hall sender

G83 - Radiator outlet coolant temperature sender


T3i - 3-pin connector, grey, on engine speed sender



281 - Earth connection 1, in engine harness

* - models with manual gearbox

** - models with automatic gearbox

# - up to May 2006

## - from June 2006

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Engine control unit, brake light switch, clutch pedal switch, brake pedal switchF - Brake light switch

F47 - Brake pedal switch

J104 - ABS control unit

J508 - Brake light suppression relay


SC5 - Fuse 5 on fuse holder C






T47a - 47-pin connector, on ABS control unit


377 - Earth connection 12, in main wiring harness

664 - Earth point, on left behind dash panel

B163 - Positive connection 1 (15), in interior wiring harness

B300 - Positive connection 4 (30), in main wiring harness

B336 - Connection 2 (54), in main wiring harness

* - relay and fuse carrier centre dash panel

# - up to May 2006

## - from June 2006


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Engine control unit, lambda probe, exhaust gas temperature sender 1, exhaust gas pressure sensor 1, temperature sender before particulate filterG39 - Lambda probe

G235 - Exhaust gas temperature sender 1

G450 - Exhaust gas pressure sensor 1

G506 - Temperature sender before particulate filter



T6r - 6-pin connector, black, for lambda probe


Z19 - Lambda probe heater


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Engine control unit, fuel cooling pump relay, high pressure sender, fuel cooling pump relayG65 - High pressure sender

J255 - Climatronic control unit

J445 - Fuel cooling pump relay




T16d - 16-pin connector, black, connector D, on Climatronic control unit


V166 - Fuel cooling pump

685 - Earth point 1, on front of right longitudinal member




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Engine control unit, continued coolant circulation relay, coolant circulation pump, fuel pump relay for auxiliary heaterJ151 - Continued coolant circulation relay

J255 - Climatronic control unit


J749 - Fuel pump relay for auxiliary heater

T6k - 6-pin connector, brown, coupling station on electronics box, plenum chamber



T16c - 16-pin connector, brown, connector C, on Climatronic control unit

T16d - 16-pin connector, black, connector D, on Climatronic control unit


V50 - Coolant circulation pump


640 - Earth point, left in engine compartment

B537 - Connection 28, in main wiring harness

* - relay and fuse carrier centre dash panel

** - Relay and fuse carrier, electronics box plenum chamber

# - up to May 2006

## - from June 2006


♦♦ - Air conditioning system basis

♦♦♦ - Convenience air conditioning system

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Engine control unit, fuel pump relay, radiator fan control unit, radiator fanJ17 - Fuel pump relay

J293 - Radiator fan control unit


J671 - Radiator fan control unit 2








V7 - Radiator fan

V177 - Radiator fan 2

671 - Earth point 1, on front of left longitudinal member



# - up to May 2006

## - from June 2006



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Control unit in dash panel insert, fuel gauge sender, fuel gauge, fuel system pressurisation pump, fuel gauge sender 2G - Fuel gauge sender

G1 - Fuel gauge

G6 - Fuel system pressurisation pump

G23 - Fuel pump

G169 - Fuel gauge sender 2

J285 - Control unit in dash panel insert

T4k - 4-pin connector, black, under left cover on rear vehicle floor

T4l - 4-pin connector, black, on left fuel tank

T4m - 4-pin connector, black, on right fuel tank

T5k - 5-pin connector, black, under left cover on rear vehicle floor

T32a - 32-pin connector, grey, on control unit in dash panel insert

Y24 - Display in dash panel insert

61 - Earth point, left C-pillar

410 - Earth connection 1 (sender earth), in main wiring harness

* - output sender earth

# - up to May 2006

## - only tank prewiring

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Control unit in dash panel insert, oil pressure switch, coolant shortage indicator switch, oil level and oil temperature sender, oil pressure warning lamp, coolant temperature and coolant shortage warning lampF1 - Oil pressure switch

F66 - Coolant shortage indicator switch

G266 - Oil level and oil temperature sender

J285 - Control unit in dash panel insert

J533 - Data bus diagnostic interface

K3 - Oil pressure warning lamp

K28 - Coolant temperature and coolant shortage warning lamp




T10f - 10-pin connector, red, coupling station on electronics box, plenum chamber

T26b - 26-pin connector, black, connector B, on data bus diagnostic interface

T32a - 32-pin connector, grey, on control unit in dash panel insert

Y24 - Display in dash panel insert

45 - Earth point, centre behind dash panel



# - up to May 2006

## - from June 2006

♦ - up to May 2007


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audi q7 battery terminal engine management

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