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Wiring diagrams AUDI Audi Q7 4.2 l — TDI, Common Rail (240 kW — 8-cylinder), engine code BTR

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Wiring diagrams AUDI Audi Q7 4.2 l - TDI, Common Rail (240 kW - 8-cylinder), engine code BTR from March 2007
Audi Q7 Current Flow Diagram No.  53 / 1
Edition 04.2009
Notes:
For information concerning
t  Position of relays and fuses
t  Multi-pin connections
t  Control units and relays
t  Earth connections
→ List of Fitting Locations!
For information concerning
t  Fault Finding Programs
→ guided fault finding

Audi Q7 Current Flow Diagram No.  53 / 2
Wiring diagrams AUDI Audi Q7 4.2 l — TDI, Common Rail (240 kW — 8-cylinder), engine code BTR
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Battery, energy management control unit, battery isolation igniter, fuses
A -   Battery
J234 -   Airbag control unitA005Q7200804#BTJ234
J329 -   Terminal 15 voltage supply relayA005Q7200803#BTJ329
J367 -   Battery monitor control unitA005Q7200804#BTJ367
J518 -   Entry and start authorisation control unitA005Q7200804#BTJ518
J644 -   Energy management control unitA005Q7200804#BTJ644
N253 -   Battery isolation igniterA005Q7200802#BTN253
SD1 -   Fuse 1 on fuse holder DA005Q7200802#BTSD1
SD2 -   Fuse 2 on fuse holder DA005Q7200802#BTSD2
SD3 -   Fuse 3 on fuse holder DA005Q7200802#BTSD3
SD4 -   Fuse 4 on fuse holder DA005Q7200802#BTSD4
SD5 -   Fuse 5 on fuse holder DA005Q7200802#BTSD5
T2au -   2-pin connector, yellow, on battery isolation igniter
T2az -   2-pin connector, on battery monitor control unitA005Q7200804#BTT2az
T10d -   10-pin connector, blue, coupling station on electronics box, plenum chamberA005Q7200805#BTT10d
T20e -   20-pin connector, black, on entry and start authorisation control unitA005Q7200804#BTT20e
T46a -   46-pin connector, black, CAN disconnector leftA005Q7200805#BTT46a
T75 -   75-pin connector, grey, on airbag control unit (USA: white)A005Q7200804#BTT75
  624 -   Earth point, starter batteryA005Q7200801#VB624
  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 2007
♦♦ -   from June 2007
# -   up to May 2008
## -   from June 2008

Audi Q7 Current Flow Diagram No.  53 / 3
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Starter, alternator, starter motor relay, starter motor relay 2, slave start socket
B -   Starter
C -   Alternator
C1 -   Voltage regulator
J53 -   Starter motor relayA005Q7200803#BTJ53
J533 -   Data bus diagnostic interfaceA005Q7200804#BTJ533
J695 -   Starter motor relay 2A005Q7200803#BTJ695
SB6 -   Fuse 6 on fuse holder B
SB8 -   Fuse 8 on fuse holder B
SB9 -   Fuse 9 on fuse holder B
T2 -   2-pin connector, black, on alternator
T10f -   10-pin connector, red, coupling station on electronics box, plenum chamberA005Q7200805#BTT10f
T10z -   10-pin connector, white, coupling station on electronics box, plenum chamber
T20 -   20-pin connector, black, on data bus diagnostic interfaceA005Q7200804#BTT20
TV22 -   Terminal 30 wiring junction 2A005Q7200802#BTTV22
U6 -   Slave start socketA005Q7200802#BTU6
  13 -   Earth point, on right in engine compartment
  18 -   Earth point on engine block
  B177 -   Connection (61), in interior wiring harness
  B272 -   Positive connection (30), in main wiring harness
  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
♦♦ -   from June 2007
# -   up to May 2008
## -   from June 2008

Audi Q7 Current Flow Diagram No.  53 / 4
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Automatic glow period control unit, glow plugs
J179 -   Automatic glow period control unitA005Q7200803#BTJ179
Q10 -   Glow plug 1
Q13 -   Glow plug 4
Q15 -   Glow plug 6
Q16 -   Glow plug 7
S2 -   Fuse in relay plate fuse holderA005Q7200802#BTS2
S7 -   Fuse in relay plate fuse holderA005Q7200802#BTS7
T8v -   8-pin connector, black, in right engine compartment
T10m -   10-pin connector, black, coupling station on electronics box, plenum chamberA005Q7200805#BTT10m
  D103 -   Connection 3, in engine compartment wiring harness
  D144 -   Positive connection 5 (30), in engine compartment wiring harness
* -   Relay and fuse carrier, electronics box plenum chamber

Audi Q7 Current Flow Diagram No.  53 / 5
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Glow period control unit 2, glow plugs
J703 -   Glow period control unit 2A005Q7200803#BTJ703
Q11 -   Glow plug 2
Q12 -   Glow plug 3
Q14 -   Glow plug 5
Q17 -   Glow plug 8
S5 -   Fuse in relay plate fuse holderA005Q7200802#BTS5
S13 -   Fuse in relay plate fuse holderA005Q7200802#BTS13
T8v -   8-pin connector, black, in right engine compartment
  D106 -   Connection 4, in engine compartment wiring harness
* -   Relay and fuse carrier, electronics box plenum chamber

Audi Q7 Current Flow Diagram No.  53 / 6
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, terminal 30 voltage supply relay
J317 -   Terminal 30 voltage supply relayA005Q7200803#BTJ317
J623 -   Engine control unitA005Q7200804#BTJ623
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  85 -   Earth connection 1, in engine compartment wiring harness
  132 -   Earth connection 3, in engine compartment wiring harness
  609 -   Earth point, on right in plenum chamberA005Q7200801#VB609
  B303 -   Positive connection 7 (30), in main wiring harness
  D50 -   Positive connection (30), in engine compartment wiring harness
  D75 -   Positive connection 2 (30), in engine compartment wiring harness
  D101 -   Connection 1, in engine compartment wiring harness
  D102 -   Connection 2, in engine compartment wiring harness
  D104 -   Positive connection 2 (30a), in engine compartment wiring harness
* -   Relay and fuse carrier, electronics box plenum chamber
** -   Screw connection in electronics box in plenum chamber

Audi Q7 Current Flow Diagram No.  53 / 7
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit
E45 -   Cruise control system switchA005Q7200804#BTE45
F125 -   Multifunction switch
J518 -   Entry and start authorisation control unitA005Q7200804#BTJ518
J527 -   Steering column electronics control unitA005Q7200804#BTJ527
J623 -   Engine control unitA005Q7200804#BTJ623
S9 -   Fuse in relay plate fuse holderA005Q7200802#BTS9
T10c -   10-pin connector, pink, coupling station on electronics box, plenum chamberA005Q7200805#BTT10c
T10d -   10-pin connector, blue, coupling station on electronics box, plenum chamberA005Q7200805#BTT10d
T10p -   10-pin connector, black, on gearbox
T16a -   16-pin connector, on steering column electronics control unitA005Q7200804#BTT16a
T20e -   20-pin connector, black, on entry and start authorisation control unitA005Q7200804#BTT20e
T46a -   46-pin connector, black, CAN disconnector leftA005Q7200805#BTT46a
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  B482 -   Connection 18 in main wiring harness
  D159 -   Connection (high bus), in engine compartment wiring harness
  D160 -   Connection (low bus), in engine compartment wiring harness
  D180 -   Connection (87a), in engine compartment wiring harness
  D181 -   Connection 2 (87a), in engine compartment wiring harness
• -   CAN bus (data wire)

Audi Q7 Current Flow Diagram No.  53 / 8
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, coolant temperature sender, fuel temperature sender, fuel pressure sender, injector, cylinder 1, 4, 6 and 7
G62 -   Coolant temperature sender
G81 -   Fuel temperature sender
G247 -   Fuel pressure sender
J623 -   Engine control unitA005Q7200804#BTJ623
N30 -   Injector, cylinder 1
N33 -   Injector, cylinder 4
N84 -   Injector, cylinder 6
N85 -   Injector, cylinder 7
S15 -   Fuse in relay plate fuse holderA005Q7200802#BTS15
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  D52 -   Positive connection (15a), in engine compartment wiring harness

Audi Q7 Current Flow Diagram No.  53 / 9
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, throttle valve module, air mass meter, accelerator position sender
G70 -   Air mass meter
G79 -   Accelerator position sender
G185 -   Accelerator position sender 2
J338 -   Throttle valve module
J623 -   Engine control unitA005Q7200804#BTJ623
J843 -   Interface control unit for vehicle location system
S14 -   Fuse in relay plate fuse holderA005Q7200802#BTS14
T10e -   10-pin connector, green, coupling station on electronics box, plenum chamberA005Q7200805#BTT10e
T12z -   12-pin connector, brown, on interface control unit for vehicle location system
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  B564 -   Connection 31 in main wiring harness
  D107 -   Connection 5, in engine compartment wiring harness
* -   for models with interface for special functions

Audi Q7 Current Flow Diagram No.  53 / 10
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, Hall sender, oil temperature sender, charge air pressure sender, intake air temperature sender, pressure differential sender
G8 -   Oil temperature sender
G31 -   Charge air pressure sender
G40 -   Hall sender
G42 -   Intake air temperature sender
G505 -   Pressure differential sender
J623 -   Engine control unitA005Q7200804#BTJ623
T10z -   10-pin connector, white, coupling station on electronics box, plenum chamber
T14m -   14-pin connector, black, in engine compartment, bank 1
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94

Audi Q7 Current Flow Diagram No.  53 / 11
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, engine speed sender, exhaust gas recirculation potentiometer, exhaust gas recirculation control motor
G28 -   Engine speed sender
G83 -   Radiator outlet coolant temperature sender
G212 -   Exhaust gas recirculation potentiometer
J623 -   Engine control unitA005Q7200804#BTJ623
T3i -   3-pin connector, grey, on engine speed sender
T6z -   6-pin connector, grey, on exhaust gas recirculation control motor
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
V338 -   Exhaust gas recirculation control motor

Audi Q7 Current Flow Diagram No.  53 / 12
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, turbocharger control unit, intake manifold flap motor
J623 -   Engine control unitA005Q7200804#BTJ623
J724 -   Turbocharger 1 control unit
J725 -   Turbocharger 2 control unit
T10m -   10-pin connector, black, coupling station on electronics box, plenum chamberA005Q7200805#BTT10m
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
V157 -   Intake manifold flap motor
  281 -   Earth connection 1, in engine harness
  D108 -   Connection 6, in engine compartment wiring harness
  D159 -   Connection (high bus), in engine compartment wiring harness
  D160 -   Connection (low bus), in engine compartment wiring harness
  D178 -   Connection 2 (high bus), in engine compartment wiring harness
  D179 -   Connection 2 (low bus), in engine compartment wiring harness
• -   CAN bus (data wire)

Audi Q7 Current Flow Diagram No.  53 / 13
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, heater element for crankcase breather, fuel pressure regulating valve, fuel metering valve, exhaust gas recirculation cooler change-over valve
J623 -   Engine control unitA005Q7200804#BTJ623
N79 -   Heater element for crankcase breather
N276 -   Fuel pressure regulating valve
N290 -   Fuel metering valve
N345 -   Exhaust gas recirculation cooler change-over valve
S10 -   Fuse in relay plate fuse holderA005Q7200802#BTS10
S18 -   Fuse in relay plate fuse holderA005Q7200802#BTS18
T10m -   10-pin connector, black, coupling station on electronics box, plenum chamberA005Q7200805#BTT10m
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  281 -   Earth connection 1, in engine harness
  609 -   Earth point, on right in plenum chamberA005Q7200801#VB609
  D109 -   Connection 7, in engine compartment wiring harness
  D189 -   Connection (87a), in engine wiring harness
* -   Crankcase 1
** -   Crankcase 2

Audi Q7 Current Flow Diagram No.  53 / 14
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, brake light switch, clutch pedal switch, brake pedal switch
F -   Brake light switch
F47 -   Brake pedal switch
J104 -   ABS control unitA005Q7200804#BTJ104
J508 -   Brake light suppression relayA005Q7200803#BTJ508
J623 -   Engine control unitA005Q7200804#BTJ623
SC5 -   Fuse 5 on fuse holder C
SC6 -   Fuse 6 on fuse holder C
SC8 -   Fuse 8 on fuse holder C
SC11 -   Fuse 11 on fuse holder C
T10c -   10-pin connector, pink, coupling station on electronics box, plenum chamberA005Q7200805#BTT10c
T10d -   10-pin connector, blue, coupling station on electronics box, plenum chamberA005Q7200805#BTT10d
T47a -   47-pin connector, on ABS control unitA005Q7200804#BTT47a
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  377 -   Earth connection 12, in main wiring harness
  664 -   Earth point, on left behind dash panelA005Q7200801#VB664
  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 2007
♦♦ -   from June 2007
# -   up to May 2008
## -   from June 2008

Audi Q7 Current Flow Diagram No.  53 / 15
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, exhaust gas temperature sender 1, temperature sender before particulate filter
G235 -   Exhaust gas temperature sender 1
G506 -   Temperature sender before particulate filter
J623 -   Engine control unitA005Q7200804#BTJ623
T10z -   10-pin connector, white, coupling station on electronics box, plenum chamber
T14m -   14-pin connector, black, in engine compartment, bank 1
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
  44 -   Earth point, lower part of left A-pillarA005Q7200801#VB44
  372 -   Earth connection 7, in main wiring harness
  D110 -   Connection 8, in engine compartment wiring harness

Audi Q7 Current Flow Diagram No.  53 / 16
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, lambda probe, fuel cooling pump relay, fuel cooling pump relay
G39 -   Lambda probe
J445 -   Fuel cooling pump relayA005Q7200803#BTJ445
J623 -   Engine control unitA005Q7200804#BTJ623
S11 -   Fuse in relay plate fuse holderA005Q7200802#BTS11
S12 -   Fuse in relay plate fuse holderA005Q7200802#BTS12
T6r -   6-pin connector, black, for Lambda probe
T10m -   10-pin connector, black, coupling station on electronics box, plenum chamberA005Q7200805#BTT10m
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
V166 -   Fuel cooling pump
Z19 -   Lambda probe heater
  D111 -   Connection 9, in engine compartment wiring harness
  D112 -   Connection 10, in engine compartment wiring harness
* -   Relay and fuse carrier, electronics box plenum chamber
** -   phased-in modification

Audi Q7 Current Flow Diagram No.  53 / 17
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, continued coolant circulation relay, coolant circulation pump, fuel pump relay for auxiliary heater
J151 -   Continued coolant circulation relayA005Q7200803#BTJ151
J255 -   Climatronic control unitA005Q7200804#BTJ255
J623 -   Engine control unitA005Q7200804#BTJ623
J749 -   Fuel pump relay for auxiliary heaterA005Q7200803#BTJ749
T6k -   6-pin connector, brown, coupling station on electronics box, plenum chamberA005Q7200805#BTT6k
T10c -   10-pin connector, pink, coupling station on electronics box, plenum chamberA005Q7200805#BTT10c
T10d -   10-pin connector, blue, coupling station on electronics box, plenum chamberA005Q7200805#BTT10d
T16c -   16-pin connector, brown, connector C, on Climatronic control unitA005Q7200804#BTT16c
T16d -   16-pin connector, black, connector D, on Climatronic control unitA005Q7200804#BTT16d
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
V50 -   Coolant circulation pump
  368 -   Earth connection 3, in main wiring harness
  640 -   Earth point, left in engine compartmentA005Q7200801#VB640
  B537 -   Connection 28 in main wiring harness
* -   relay and fuse carrier centre dash panel
** -   Relay and fuse carrier, electronics box plenum chamber
# -   Air conditioning system basis
## -   Convenience air conditioning system
### -   models with auxiliary heater

Audi Q7 Current Flow Diagram No.  53 / 18
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, radiator fan control unit, radiator fan
J293 -   Radiator fan control unitA005Q7200804#BTJ293
J623 -   Engine control unitA005Q7200804#BTJ623
J671 -   Radiator fan control unit 2A005Q7200804#BTJ671
S1 -   Fuse in relay plate fuse holderA005Q7200802#BTS1
S4 -   Fuse in relay plate fuse holderA005Q7200802#BTS4
S8 -   Fuse in relay plate fuse holderA005Q7200802#BTS8
T10d -   10-pin connector, blue, coupling station on electronics box, plenum chamberA005Q7200805#BTT10d
T60 -   60-pin connector, black, on engine control unitA005Q7200804#BTT60
T94 -   94-pin connector, black, on engine control unitA005Q7200804#BTT94
V7 -   Radiator fanA005Q7200804#BTV7
V177 -   Radiator fan 2A005Q7200804#BTV177
  671 -   Earth point 1, on front of left longitudinal memberA005Q7200801#VB671
  D166 -   Connection (K-diagnosis wiring), in engine compartment wiring harness
• -   CAN bus (data wire)
* -   models without trailer towing attachment
** -   models with trailer towing attachment
# -   no longer fitted, phased

Audi Q7 Current Flow Diagram No.  53 / 19
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit 2
J624 -   Engine control unit 2
T60a -   60-pin connector, black, on engine control unit 2
T94a -   94-pin connector, black, on engine control unit 2
  131 -   Earth connection 2, in engine compartment wiring harness
• -   CAN bus (data wire)
# -   no longer fitted, phased

Audi Q7 Current Flow Diagram No.  53 / 20
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit 2, air mass meter 2, Injector for cylinder 2, 3, 5 and 8
G246 -   Air mass meter 2
J624 -   Engine control unit 2
N31 -   Injector, cylinder 2
N32 -   Injector, cylinder 3
N83 -   Injector, cylinder 5
N86 -   Injector, cylinder 8
T60a -   60-pin connector, black, on engine control unit 2
T94a -   94-pin connector, black, on engine control unit 2
• -   CAN bus (data wire)

Audi Q7 Current Flow Diagram No.  53 / 21
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit 2, exhaust gas recirculation potentiometer 2, throttle valve module 2, exhaust gas recirculation control motor 2
G466 -   Exhaust gas recirculation potentiometer 2
J544 -   Throttle valve module 2
J624 -   Engine control unit 2
T60a -   60-pin connector, black, on engine control unit 2
V339 -   Exhaust gas recirculation control motor 2

Audi Q7 Current Flow Diagram No.  53 / 22
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit 2, high pressure sender, pressure differential sender 2, intake manifold flap 2 motor
G65 -   High pressure sender
G524 -   Pressure differential sender 2
J255 -   Climatronic control unitA005Q7200804#BTJ255
J624 -   Engine control unit 2
T10d -   10-pin connector, blue, coupling station on electronics box, plenum chamberA005Q7200805#BTT10d
T10m -   10-pin connector, black, coupling station on electronics box, plenum chamberA005Q7200805#BTT10m
T14m -   14-pin connector, black, in engine compartment, bank 1
T16d -   16-pin connector, black, connector D, on Climatronic control unitA005Q7200804#BTT16d
T60a -   60-pin connector, black, on engine control unit 2
T94a -   94-pin connector, black, on engine control unit 2
V275 -   Intake manifold flap 2 motor
  D113 -   Connection 11, in engine compartment wiring harness

Audi Q7 Current Flow Diagram No.  53 / 23
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit 2, lambda probe 2, bank 2 exhaust gas temperature sender 1, lambda probe 2 heater, temperature sender 2 before particulate filter
G108 -   Lambda probe 2
G236 -   Bank 2 exhaust gas temperature sender 1
G498 -   Temperature sender 2 before particulate filter
J624 -   Engine control unit 2
T6s -   6-pin connector, brown, for Lambda probe 2
T10z -   10-pin connector, white, coupling station on electronics box, plenum chamber
T14m -   14-pin connector, black, in engine compartment, bank 1
T94a -   94-pin connector, black, on engine control unit 2
Z28 -   Lambda probe 2 heater
  D114 -   Connection 12, in engine compartment wiring harness
* -   phased-in modification

Audi Q7 Current Flow Diagram No.  53 / 24
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Fuel pump relay, oil level and oil temperature sender
G266 -   Oil level and oil temperature sender
J17 -   Fuel pump relayA005Q7200803#BTJ17
S16 -   Fuse in relay plate fuse holderA005Q7200802#BTS16
S17 -   Fuse in relay plate fuse holderA005Q7200802#BTS17
SB6 -   Fuse 6 on fuse holder B
SB7 -   Fuse 7 on fuse holder B
SB8 -   Fuse 8 on fuse holder B
T10c -   10-pin connector, pink, coupling station on electronics box, plenum chamberA005Q7200805#BTT10c
T10f -   10-pin connector, red, coupling station on electronics box, plenum chamberA005Q7200805#BTT10f
  45 -   Earth point, centre behind dash panelA005Q7200801#VB45
  378 -   Earth connection 13, in main wiring harness
  B165 -   Positive connection 2 (15), in interior wiring harness
  D115 -   Connection 13, in engine compartment wiring harness
* -   Relay and fuse carrier, electronics box plenum chamber
♦ -   up to May 2007
♦♦ -   from June 2007

Audi Q7 Current Flow Diagram No.  53 / 25
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Fuel gauge sender, oil pressure switch
F1 -   Oil pressure switch
F66 -   Coolant shortage indicator switch
G -   Fuel gauge sender
G1 -   Fuel gaugeA005Q7200804#BTG1
G6 -   Fuel system pressurisation pump
G23 -   Fuel pump
G169 -   Fuel gauge sender 2
J285 -   Control unit in dash panel insertA005Q7200804#BTJ285
J533 -   Data bus diagnostic interfaceA005Q7200804#BTJ533
K3 -   Oil pressure warning lampA005Q7200804#BTK3
K28 -   Coolant temperature and coolant shortage warning lampA005Q7200804#BTK28
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
T10f -   10-pin connector, red, coupling station on electronics box, plenum chamberA005Q7200805#BTT10f
T20 -   20-pin connector, black, on data bus diagnostic interfaceA005Q7200804#BTT20
T26b -   26-pin connector, black, on data bus diagnostic interfaceA005Q7200804#BTT26b
T32a -   32-pin connector, grey, on control unit in dash panel insertA005Q7200804#BTT32a
Y24 -   Display in dash panel insertA005Q7200804#BTY24
  61 -   Earth point, left C-pillarA005Q7200801#VB61
  62 -   Earth point, right C-pillar
  410 -   Earth connection 1 (sender earth), in main wiring harness
• -   CAN bus (data wire)
* -   output sender earth
** -   up to May 2008
*** -   from June 2008
# -   no longer fitted, phased
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