1997 AUDI A4 wiring

24-163

Checking voltage supply of accelerator
position sensors

- Remove storage compartment on driver's
side.

Repair Manual, Body Interior, Repair Group
68


- Disconnect harness connector for accelerator
position sensor.

- Switch ignition on.

- Connect hand-held multimeter (voltage range) between the following
sockets on the connector: 6-pin connector on wiring harness, socket
Specification
2 + Ground (GND) approx. 5 V
1 + 3 approx. 5 V
5 + Ground (GND) approx. 5 V
5 + 4 approx. 5 V
Pa
ge 31 of 39 Electronic En
gine Power Control
(EPC
), checkin
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11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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24-164
If the specifications are obtained:

- Check signal wiring Page 24
-164
.
If the specifications are not obtained:

- Check wiring between Engine Control Module
(ECM) and accelerator position sensors.

Checking wiring

- Connect VAG1598/31 test box to wiring harness
for engine control module. Do not connect to the
engine control module itself Page 24
-20
.

- Check for open circuit and short to B+ or Ground
(GND) in the following wiring connections:

Connector socket
VAG1598/31 test box
Socket
1 72
2 73
3 36
4 35
5 33
Pa
ge 32 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4

24-165

- Repair any open/short circuit as necessary.
If no wiring malfunction is detected:

- Replace accelerator position sensors.

Note:
After replacing accelerator position sensor, on
vehicles with automatic/stepless transmission
carry out adaptation of Kick-Down switch
Page 24
-166
.
Pa
ge 34 of 39 Electronic En
gine Power Control
(EPC
), checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.4