Camshaft Position Sensor: Testing and Inspection

Special Tools, Testers And Auxiliary Items
- VAG 1598/18 Test Box
- Multimeter (Fluke 83 Or Equivalent)
- Connector Test Kit VW 1594
- Wiring Diagram

Test Sequence




- Disconnect 3-pin connector from camshaft position sensor.
- Connect multimeter using test leads from VW 1594 to measure voltage at terminals 1 and 3 of connector.
- Switch ignition on.
- Measure voltage between terminals 1 and 3.
Specification: 9-14.5 volts
- Switch ignition off.

If the specification is not attained:




- Connect VAG 1598/18 test box to Engine Control Module wiring harness.




- Check wiring between test box and 3-pin connector for open circuit according to wiring diagram.
- Terminal 1 and test box socket 56
- Terminal 2 and test box socket 44
- Terminal 3 and test box socket 41
Resistance: Max. 1.5 ohms
- Check the wire between 3-pin connector and relay panel for open circuit using wiring diagram.
Terminal 3 and relay panel
Resistance: Max. 1.5 ohms
- Additionally check all wires for short circuit to each other.
- Terminal 3 and test box socket 44
- Terminal 3 and test box socket 56
- Terminal 2 and test box socket 56
Specification: Infinite ohms

If no wiring malfunction is detected and voltage was present between terminals 1 and 3:
- Replace distributor with camshaft position sensor.

If no wiring malfunction is detected and no voltage was present between terminals 1 and 3:
- Replace Engine Control Module -J220-.
- Read the readiness code. If DTC memory has been erased, repair must be verified via appropriate display group: Readiness code, creating.