Circuit/System Testing
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector of the CPP sensor.
- Ignition ON, observe the scan tool CPP sensor voltage parameter for 0.1 volt.
- If the voltage is within the specified range, replace the CPP sensor.
- If the voltage is not within the specified range, replace the ECM.