Diagnostic Trouble Code (DTC) Information
Condition
Diagnostic trouble code (DTC) ECM-3000 covers camshaft position (CMP) sensor, intake.
Diagnostic trouble code (DTC) ECM-3010 covers camshaft position (CMP) sensor, exhaust.
Diagnostic trouble code (DTC) ECM-3000 (intake) or ECM-3010 (exhaust) is stored if the pulse width modulation (PWM) signal from the camshaft position (CMP) sensor is constantly high (signal too high) or low (signal too low).
Diagnostic trouble code (DTC) ECM-3000 (intake) or ECM-3010 (exhaust) is stored if the pulse width modulation (PWM) signal from the camshaft position (CMP) sensor is missing but returns sporadically (missing signal).
Diagnostic trouble code (DTC) ECM-3000 (intake) or ECM-3010 (exhaust) is stored if the pulse width modulation (PWM) signal from the camshaft position (CMP) sensor is sporadically missing (faulty signal).
The fault is diagnosed by the control module when the engine is running.
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 the power cable
- Open-circuit in the ground lead
- Damaged camshaft position (CMP) sensor.
Signal too low
- Short-circuit to ground in the signal cable
- Open-circuit in the power cable
- Loose connections.
Signal missing
- The camshaft position (CMP) sensor is in the wrong position
- Damaged camshaft position (CMP) sensor
- Loose connections.
Faulty signal
- The camshaft position (CMP) sensor is in the wrong position
- Damaged camshaft position (CMP) sensor
- Loose connections.
Fault symptom[s]
- The engine is difficult to start.