Checking wiring

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

• Check wiring between test box and 2-pin connector for open circuit according to wiring diagram.

	G61	G66
Terminal 1+Socket	106	107
Terminal 2+Socket	99	99
Wire resistance: max. 1.5 Ω

• Additionally check wires for short to one another.

Specification: ∞Ω

If no wiring malfunction is detected:

• Loosen knock sensor and tighten again to 20 Nm.
• Perform a test drive again and check knock control specifications on display.

Observe the valid safety precautions when road testing vehicle → Safety precautions  .

During the road test the following operating conditions must be fulfilled:

• Coolant temperature must exceed 85 ° C.
• When the temperature is reached, the operating conditions

Idling

Part throttle

Wide open throttle

Overrun

Must be attained several times.

• At wide open throttle the engine speed must exceed 3500 rpm.

• Again check control module DTC memory.

If malfunction is still present:

• Replace knock sensor(s).
• 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