Test sequence

• Disconnect 3-pin connector - 1  - from Camshaft Position (CMP) sensor G40 - 2  -.
• Connect multimeter to measure voltage using auxiliary cables from VAG1594C to outer contacts of connector.
• Switch ignition on.

Specification: min. 4.5 V

• Switch ignition off.

• Connect test box VAG1598/31 to control module wiring harness. Engine control module remains disconnected.

• Check wiring for open circuit between test box and connector using
• Wiring diagram.

Contact 1+socket 98

Contact 2+socket 86

Contact 3+socket 108

Wire resistance: Max. 1.5 Ω

• Check wires for short to one another.

If no wiring malfunction is detected and voltage was present between contacts 1+3:

• Replace Camshaft Position (CMP) sensor G40.
• Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory → DTC memory (functions 02 and 05), checking and erasing 
• Read readiness code → Readiness code, reading  . If DTC memory has been erased, readiness code must be generated again:

Engine code AWW, → Readiness code for engine code AWW, generating 

Engine code AWP, → Readiness code for engine code AWP, generating 

If no wiring malfunction is detected and no voltage was present between contacts 1+3:

• Replace engine control module → Engine control module, replacing  .