Camshaft Position Sensor: Testing and Inspection

Camshaft position sensor, checking

Special tools, testers, measuring instruments and auxiliary items required

- VAG 1598/22 Test Box
- Fluke 83 multimeter
- VW 1594 Adaptor kit
- Wiring diagram

Test Conditions

- Battery voltage must be 11.5 Volts minimum

Test Sequence

- Disconnect 3-pin harness connector -1- off Camshaft Position sensor -2-.






- Switch multimeter to Voltage measurement range
- Connect multimeter between outer terminals of connector using jumper wires from VW 1594
- Switch ON ignition.
- Specification: min. 4.5 Volts
- Switch OFF ignition.
- Connect test box VAG 1598/22 to Engine Control Module harness connector.







- Check wiring between Test Box and harness connector using wiring diagram Terminal 1 + socket 11 Terminal 2 + socket 76 Terminal 3 + socket 67 Wire resistance: Max. 1.5 Ohms






- Check wires for shorting to one another.
- Specification: Infinity Ohms

If wiring OK and voltage present between terminals 1 + 3
- Replace Camshaft Position sensor G40.

If wiring OK and no voltage present between terminals 1 + 3
- Replace Engine Control Module.