Checking activation
NOTE:
- Camshaft Position (CMP) Sensor -G40- is located at front of right cylinder block (Bank 1).
- Camshaft Position (CMP) Sensor 2 -G163- is located at rear of left cylinder block (Bank 2).
- Slide back rubber grommet at connector of respective Camshaft Position (CMP) Sensor (connector remains connected to Camshaft Position (CMP) Sensor).
- Connect VAG1527B voltage tester between sockets 2 (CMP sensor signal) and 1 (B+).
NOTE:
Connector socket numbers are shown on the rear side of the connector.
- Operate starter for a few seconds.
- LED must blink briefly at every second engine rotation.
NOTE:
Voltage testers do not go out completely during low current pick-up between activations by the ECM, but rather continue to glow a little and then get significantly brighter during activation.
If LED does not blink: