| CAUTION | If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. |
Circuit Description
The CMP sensor is a pick-up coil mounted in front of right cylinder head. A 1-tooth signal plate is integrated with right side camshaft timing pulley. DTC is set when either no cranking or engine running signal is received by ECM from sensor. Possible causes are
- Open or short in CMP sensor circuit.
- CMP sensor.
- Starter.
- ECM.