S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
If the specifications are not obtained:
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Check wiring between Engine Control Module (ECM) and accelerator position sensors.
Checking wiring
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Connect VAG1598/31 test box to wiring harness for engine control module. Do not connect to the engine control module itself. Refer to "Scan
Tool Testing/Wiring And Component Check With VAG1598/31 Test Box", See: Computers and Control Systems/Testing and Inspection
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Check for open circuit and short to B+ or Ground (GND) in the following wiring connections:
Connect Socket
VAG 1598/31
test box Socket
1
72
2
73
3
36
4
35
5
33
6
34
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Repair any open/short circuit as necessary.
If no wiring malfunction is detected:
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Replace accelerator position sensors.
NOTE: After replacing accelerator position sensor, on vehicles with automatic/stepless transmission carry out adaptation of Kick-Down switch.