02.09.

2022

Copyright VW AG

Current Flow Diagrams ElsaPro transaction no.:

DMS order no.:

VIN: WA1DVAFE3AD002924 Model year: 2010

Sales code: 4LB5EL Model description: Q7 quat.4.2 V8257 A6

Engine code: BAR Gearbox code: KMF

Registration number: Final drive code:

Username: erwin Service advisor name: erwin, null(null)

Audi Q7 Current Flow Diagram No. 5 / 1

Edition 04.2007
Airbag
from model year 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

1/ 8
Audi Q7 Current Flow Diagram No. 5 / 2
Airbag control unit, battery isolation igniter
A −Battery
J234 −Airbag control unit
J329 −Terminal 15 voltage supply relay
J393 −Convenience system central control unit
N253 −Battery isolation igniter
SC6 −Fuse 6 on fuse holder C
B273 SC8 −Fuse 8 on fuse holder C
6,0 6,0
SC10 −Fuse 10 on fuse holder C
sw sw
T32d −32-pin connector, on convenience system central control unit
2/87 J 393 T46b −46-pin connector, black, CAN separating connector right
B163 J 329 T46b/5H T46b/5L T32d
1 /25 T75 −75-pin connector, grey, on airbag control unit (USA: white)
♦♦ ♦
✱
• • B163 −Positive connection 1 (15), in interior wiring harness
6,0 6,0 0,35 0,35 0,35
sw sw or/sw or/br li/bl
B273 −Positive connection (15), in main wiring harness
B278 −Positive connection 2 (15a), in main wiring harness
T75
6 8 10 J 234 T75/74 T75/75 /53 −CAN bus (data wire)
•
SC6 SC8 SC10 ST2 −Relay and fuse carrier under driver seat
20A 5A 5A *
6a 8a 10a T75/1 T75/27 T75/28
15a # −only USA
♦ −up to May 2007
0,5 0,5 0,5 0,5
sw/ge sw/ge ws ge ♦♦ −from June 2007

B278 ws = white gr = grey

sw = black li = purple
ro = red vi = purple
A rt = red ge = yellow
br = brown or = orange
0,35 0,5
# 50,0 gn = green rs = pink
sw/ge sw/ge sw bl = blue blk = uninsulated
tk = turquoise
79 87

1 2

N253

1 2 3 4 5 6 7 8 9 10 11 12 13 14
4L0-005020407

2/ 8
Audi Q7 Current Flow Diagram No. 5 / 3
Airbag control unit, airbag coil connector and return spring with slip ring,
airbag igniter
F138 −Airbag coil connector and return spring with slip ring
J234 −Airbag control unit
N95 −Driver side airbag igniter
N131 −Front passenger side airbag igniter 1
N132 −Front passenger side airbag igniter 2
N250 −Driver side airbag igniter 2
T4b −4-pin connector, yellow, behind steering column switch trim
T5b −5-pin connector, yellow, behind the dash panel, right
T75 −75-pin connector, grey, on airbag control unit (USA: white)
43 −Earth point, lower part of right A-pillar
383 −Earth connection 18, in main wiring harness
* −short circuit bridge becomes effective when connector is unplugged

ws = white gr = grey
J 234 sw = black li = purple
ro = red vi = purple
rt = red ge = yellow
T75/22 T75/23 T75/37 T75/38 T75/17 T75/18 T75/39 T75/40 br = brown or = orange
28 gn = green rs = pink
bl = blue blk = uninsulated
0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 tk = turquoise
ws ge br sw gr ws bl gr br

✱ ✱

T4b/2 T4b/1 T4b/3 T4b/4 T5b/2 T5b/1 T5b/5 T5b/4 T5b

/3

-- + + --

F138
N131 N132
28
-- + -- +
0,5
br

N95 N250 383

1,0
br

43

15 16 17 18 19 20 21 22 23 24 25 26 27 28
4L0-005030406

3/ 8
Audi Q7 Current Flow Diagram No. 5 / 4
Airbag control unit, side airbag igniter
J234 −Airbag control unit
N199 −Side airbag igniter on driver side
N200 −Side airbag igniter on front passenger side
N201 −Rear side airbag igniter on driver side
N202 −Rear side airbag igniter on front passenger side
T3d −3-pin connector, yellow, under driver seat
T3e −3-pin connector, yellow, under front passenger seat
T3f −3-pin connector, yellow, under rear seat, left
T3g −3-pin connector, yellow, under rear seat, right
T75 −75-pin connector, grey, on airbag control unit (USA: white)
382 −Earth connection 17, in main wiring harness

ws = white gr = grey
sw = black li = purple
ro = red vi = purple
rt = red ge = yellow
J 234 br = brown or = orange
gn = green rs = pink
bl = blue blk = uninsulated
T75/51 T75/19 T75/20 T75/44 T75/45 T75/32 T75/33 T75/34 T75/35
31 tk = turquoise

0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5

br/ge gn ws ws bl ro ge gr ro

T3d/1 T3d/2 T3e/1 T3e/2 T3f/2 T3f/1 T3g/1 T3g/2

+ - + -- -- + + --

N199 N200 N201 N202

T3d/3 T3e/3 T3f/3 T3g/3

0,5 0,5 0,5 0,5

br/ge br/ge br/ge br/ge
382
382

29 30 31 32 33 34 35 36 37 38 39 40 41 42
4L0-005040406

4/ 8
Audi Q7 Current Flow Diagram No. 5 / 5
Airbag control unit, belt tensioner igniter 1, rear belt tensioner igniter, curtain
airbag igniter
J234 −Airbag control unit
N153 −Driver seat belt tensioner igniter 1
N154 −Front passenger side seat belt tensioner igniter 1
N196 −Rear belt tensioner igniter on driver side
N197 −Rear belt tensioner igniter on front passenger side
N251 −Driver side curtain airbag igniter
N252 −Front passenger side curtain airbag igniter
N196 ✱ N197 ✱ T2c −2-pin connector, yellow, on driver side curtain airbag igniter
T2d −2-pin connector, yellow, on front passenger side curtain airbag igniter
T2aa/1 T2aa/2 T2ab/1 T2ab/2
T2e −2-pin connector, yellow, left B-pillar
0,5 0,5 0,5 0,5 T2f −2-pin connector, yellow, right B-pillar
bl gn bl gr
T2aa −2-pin connector, on rear belt tensioner igniter on driver side
T2ab −2-pin connector, on rear belt tensioner igniter on front passenger side
T75/12 T75/13 T75/10 T75/9 J 234 T75 −75-pin connector, grey, on airbag control unit (USA: white)
382 −Earth connection 17, in main wiring harness
T75/14 T75/15 T75/7 T75/8 T75/47 T75/48 T75/49 T75/50
* −only USA
** −left-hand drive
0,5
✱✱
0,5
✱✱
0,5
✱✱
0,5
✱✱
0,5 0,5 0,5
✱✱
0,5
✱✱ *** −right-hand drive
ge sw ge bl br ro gn br
ws = white gr = grey
✱✱✱ ✱✱✱ ✱✱✱ ✱✱✱ ✱✱✱ ✱✱✱ sw = black li = purple
0,5 0,5 0,5 0,5 0,5 0,5
bl ge sw ge ro br ro = red vi = purple
rt = red ge = yellow
br = brown or = orange
gn = green rs = pink
bl = blue blk = uninsulated
T2c/2 T2c/1 T2d/1 T2d/2 T2e/1 T2e/2 T2f/2 T2f/1 tk = turquoise

N251 N252 N153 N154

382
382 382

43 44 45 46 47 48 49 50 51 52 53 54 55 56
4L0-005050407

5/ 8
Audi Q7 Current Flow Diagram No. 5 / 6
Airbag control unit, side airbag crash sensor, rear side airbag crash sensor,
crash sensor for front airbag
G179 −Side airbag crash sensor on driver side
G180 −Side airbag crash sensor on front passenger side
G256 −Rear side airbag crash sensor on driver side
G257 −Rear side airbag crash sensor on front passenger side
G283 −Front airbag crash sensor for driver side
G284 −Front airbag crash sensor for front passenger side
J234 −Airbag control unit
T2g −2-pin connector, yellow, in front left engine compartment
T2h −2-pin connector, yellow, in front right engine compartment
T2l −2-pin connector, yellow, on side airbag crash sensor on driver side
T2m −2-pin connector, yellow, on side airbag crash sensor on front passenger
side
T2n −2-pin connector, yellow, on rear side airbag crash sensor on driver side
T2o −2-pin connector, yellow, on rear side airbag crash sensor on front
J 234 passenger side
T10n −10-pin connector, black, in front left engine compartment
T75/46 T75/68 T75/41 T75/67 T75/69 T75/70 T75/71 T75/72 T75/65 T75/66 T75/62 T75
/64 T75 −75-pin connector, grey, on airbag control unit (USA: white)
382 −Earth connection 17, in main wiring harness
✱ ✱
0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5
bl sw br li br ge ws br gr/ro li/ge br bl * −left-hand drive
** −right-hand drive
✱✱ ✱✱
0,5 0,5
ge br
ws = white gr = grey
T10n T10n T10n T10n/9 sw = black li = purple
/7 /8 /10 ro = red vi = purple
rt = red ge = yellow
br = brown or = orange
0,5 0,5 0,5 0,5 gn = green rs = pink
br ro br li bl = blue blk = uninsulated
tk = turquoise

T2g/2 T2g/1 T2h/2 T2h/1 T2l/2 T2l/1 T2m/1 T2m/2 T2n/1 T2n/2 T2o/2 T2o/1

G283 G284 G179 G180 G256 G257

382
382 382

57 58 59 60 61 62 63 64 65 66 67 68 69 70
4L0-005060407

6/ 8
Audi Q7 Current Flow Diagram No. 5 / 7
Airbag control unit, belt switch, key operated switch to deactivate front
passenger side airbag, front passenger side airbag deactivated warning lamp
E24 −Driver side belt switch
E25 −Front passenger side belt switch
E224 −Key operated switch to deactivate front passenger side airbag
G128 −Seat occupied sensor, front passenger side
J234 −Airbag control unit
71 73 76 K145 −Front passenger side airbag deactivated warning lamp
T2aq −2-pin connector, black, under driver seat
0,35 0,35 0,5
gn/ro gn/ro bl/gr
T2ar −2-pin connector, black, under front passenger seat
T2as −2-pin connector, black, under front passenger seat
T17a/1 T17b/1 T17b/3 T8e −8-pin connector, black, on centre vent switch module
T17a −17-pin connector, under driver seat
0,35 0,35 0,5 T17b −17-pin connector, under front passenger seat
gn/ge gn/ro bl/gr
T75 −75-pin connector, grey, on airbag control unit (USA: white)
T75/55 T75/57 T75/6 J 234 140 −Earth connection 2, in seat adjuster wiring harness
382 −Earth connection 17, in main wiring harness
T75/60 T75/59 T75/61 * −models with seat occupied sensor, front passenger side
71 73 76

0,35 0,35 0,5 0,35 0,5 0,5 ws = white gr = grey

gn/ro gn/ro bl/gr br/ro ws li/ws sw = black li = purple
ro = red vi = purple
rt = red ge = yellow
T2aq/2 T2ar/2 T2as/2 br = brown or = orange
gn = green rs = pink
0,35 0,35
gn gn
bl = blue blk = uninsulated
tk = turquoise
T8e/7 2 1
✱ K 145
E24 E25 G128 T8e/8 E224
3/31
0,35 0,35 0,35
gn gn sw/ge

T2aq/1 T2ar/1 T2as T17b

/1 /8 3
0,5 0,5 0,5 0,5
br/ge br/ge br/ge br/ge
140
T17a/8
0,5 0,5 0,5
br/ge br/ge br/ge
382
382 382

71 72 73 74 75 76 77 78 79 80 81 82 83 84
4L0-005070306

7/ 8
Audi Q7 Current Flow Diagram No. 5 / 8
USA, airbag control unit, seat occupied recognition control unit, pressure
sensor for seat occupied recognition, belt switch
E24 −Driver side belt switch
E25 −Front passenger side belt switch
G452 −Pressure sensor for seat occupied recognition
G453 −Seat belt force sensor for seat occupied recognition
J234 −Airbag control unit
85 98 J706 −Seat occupied recognition control unit
# # T2aq −2-pin connector, black, under driver seat
0,35 0,35
gn/ro gn/ro
T8u −8-pin connector, black, under front passenger seat
T17a −17-pin connector, under driver seat
T17a/1 T17b T17b −17-pin connector, under front passenger seat
/1
T75a −75-pin connector, white, on airbag control unit

0,35 # 0,35 # 140 −Earth connection 2, in seat adjuster wiring harness

gn/ge gn/ro
382 −Earth connection 17, in main wiring harness
T75a/55 J 234 T75a/57 # −only USA

ws = white gr = grey
85 4 T75a/56 T75a/59 98 sw = black li = purple
# # # # # ro = red vi = purple
0,35 0,5 0,5 0,5 0,35
gn/ro sw/ge bl ws gn/ro rt = red ge = yellow
br = brown or = orange
T2aq/2 T17b/4 T17b/2 T17b/9 T8u/1 gn = green rs = pink
0,35 # 0,5 # 0,5 # 0,5 # 0,35 #
bl = blue blk = uninsulated
gn sw/ge bl ws gn tk = turquoise
E24 9 18 8 J 706 G453 E25

7 6 15 5/31 14 4 16

0,35 # 0,35 # 0,35 # 0,35 # 0,5 # 0,35 # 0,35 # 0,35 # 0,35 # 0,35 # 0,35 # 0,35 #
gn li/ro li li/br br gr/br gr gr/ro ro bl sw gn

T2aq/1 T8u/3 T8u/4 T8u/5 T8u/2

97
1 2 3 0,5
140 br

0,5 # G452 0,5 # 0,5 #

br/ge br br

T17a/8 90 T17b/8
0,5
# 0,5
#
br/ge br
382
382

85 86 87 88 89 90 91 92 93 94 95 96 97 98
4L0-005080906

8/ 8