Intermittent Loss of Cam and Crank (OBD II)

Name of Code:
Intermittent Loss of CMP or CKP

When Monitored:
Engine running or cranking.

Set Condition:
When the failure counter reaches 96 for 2 consecutive trips

Theory of Operation:
A failure counter is incremented whenever the correct number of crank signals is not seen between two cam signals A bad trip is stored when the failure counter reaches 96. Two consecutive bad trips are required to set the fault.

Possible Causes:
- Open or shorted 5 volt supply circuit
- Open sensor ground
- Open or shorted signal circuit
- Excessive crankshaft sensor clearance
- Excessive camshaft sensor clearance
- Damaged crankshaft sensor rotating component
- Damaged camshaft sensor rotating component
- Failed sensor
- Failed PCM