A4 Quattro Wagon V6-3.0L (AVK) (2002)
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From the DTCs stored in the memories, determined that control module 2 is not communicating with control modules 1 and 3.
Control module
DTCs stored in module DTC memories:
1
- Missing signal from control module 2
2
- Missing signal from control module 1
- Missing signal from control module 3
3
- Missing signal from control module 2
-
Switch ignition off.
-
Disconnect the control modules connected across the bus wires and check bus wires for open circuit.
-
Replace control module 2 if bus wires are OK.
Example 3:
Using DTCs stored in the memories, determined that none of the control modules are sending or receiving signals.
Control module
DTCs stored in module DTC memories:
1
- Hardware faulty
2
- Hardware faulty
3
- Hardware faulty
-
Switch ignition off.
-
Disconnect the control modules connected across the bus wires and check for a short circuit between the bus wires.
