Camshaft Position Sensor: Testing and Inspection

Camshaft Position (CMP) Sensor 2, Checking

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
- Test box VAG 1598/31
- Hand multimeter VAG 1526 or multimeter VAG 1715
- Adapter set VAG 1594
- Wiring diagram

Test conditions
The battery voltage must be at least 11.5 V.

Test sequence







- Pull 3 pin connector -1- off Camshaft Position (CMP) sensor -2-.
- Connect multimeter to measure voltage using aux. cables from VAG 1594 to the outer contacts of the connector.
- Switch on ignition.
Specification: min. 4.5 V
- Switch off ignition.







- Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.







- Connect test box VAG 1598/31 to control module wiring harness. The 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 ohms

- Additionally check wires for short to one another.

If no wiring fault is detected and voltage was present between contacts 1+3:
- Replace Camshaft Position (CMP) sensor 2 (G163).

If no wiring fault is detected and no voltage was present between contacts 1+3:
- Replace engine electronics control module.