Diagnostic Aids
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Inspect for the following conditions:
- Inspect the crankshaft position (CKP) sensor output signal with a scan tool. The scan tool will display engine speed while cranking when the PCM detects the CKP sensor A signal. Observe the Engine Speed parameter while cranking the engine. The scan tool should indicate at least a steady 200-300 RPM while cranking.
- If DTC P0335 and DTC P0385 are both setting, inspect for a loose CKP sensor assembly or damage, foreign material on the signal marks of the crankshaft pulley.
An intermittent malfunction may be caused by a fault in the CKP sensor electrical circuit. Inspect the wiring harness and the components for an intermittent condition. Refer to Intermittent Conditions .
Repair any electrical circuit faults that were found. Refer to Wiring Repairs .
The information included in the Freeze Frame data can be useful in determining the vehicle operating conditions when the DTC first set.