Diagnostic trouble code (DTC) information
Condition
If the camshaft position (CMP) sensor circuit is short-circuited to ground/voltage, if there is an open-circuit or if the signal does not change between high and low alternately (faulty signal), the control module interprets this as a fault and ECM-3000 is stored.
Substitute Value
Possible Source
Signal too high:
- open-circuit in the signal cable
- short-circuit to supply voltage in the signal cable
- short-circuit to ground in power cable
- defective camshaft position (CMP) sensor
- open-circuit in the ground lead
Signal too low:
- short-circuit to ground in the signal cable
- open-circuit in power cable
- loose connections
Faulty signal:
- defective camshaft position (CMP) sensor
- loose connections
Fault symptom[s]
- engine difficult to start