Test sequence

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Fig 1: 3-Pin Connector Disconnected From Camshaft Position Sensor -G163-

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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.

Fig 2: Identifying Test Box V.A.G 1598/31 Connected To Control Module Wiring Harness

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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

Fig 3: 3-Pin Connector Disconnected From Camshaft Position Sensor -G163-

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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 .