2007款奥迪Q7--4.2LFSI发动机（ECU）电路图.pdf

WI-XML 页码,1/14
Audi Q7 Current Flow Diagram No. 3 / 1
Edition

Audi Q7 l Fuel injection engine (257 kW - 8 cylinder), engine code BAR
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
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Audi Q7 Current Flow Diagram No. 3 / 2
Battery, terminal 15 voltage supply relay, energy management
control unit, battery isolation igniter, fuses
A - Battery
J234 - A irbag control unit
J329 - Terminal 15 voltage supply relay
J518 - Entry and start authorisation control unit
J644 - Energy management control unit
N253 - Battery isolation igniter
SB8 - Fuse 8 on fuse holder B
SB9 - Fuse 9 on fuse holder B
SD1 - Fuse 1 on fuse holder D
SD2 - Fuse 2 on fuse holder D
SD3 - Fuse 3 on fuse holder D
SD4 - Fuse 4 on fuse holder D
SD5 - Fuse 5 on fuse holder D
SD7 - Fuse 7 on fuse holder D
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)
- Positive connection (30), in main wiring harness
ws = white B272
sw = black
ro = red - Positive connection (15), in main wiring harness
B273
br = brown
gn = green
bl = blue •- CAN bus (data wire)
gr = grey * - Relay and fuse carrier under driver seat
li = purple
ge = yellow ** - screw connection (31) battery wire before driver seat
or = orange
rs = pink
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Audi Q7 Current Flow Diagram No. 3 / 3
Starter, alternator, starter motor relay, starter motor relay 2, slave
start socket
B - Starte r
C - A lternator
C1 - Voltage regulator
J53 - Starter motor relay
J695 - Sta