| CAUTION | If ECM replacement is instructed in following testing, always ensure ECM harness connector 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 outer corner of front cylinder head, just below valve cover (oil filler cap end). A one-tooth signal plate is mounted to outer camshaft. DTC P0340 is set when no cranking signal is received by ECM from sensor. DTC P0340 is also set when no signal is received by ECM from sensor with engine speed of 600 RPM or more. Possible causes are
- CMP Sensor Open Or Short Circuit
- CMP Sensor
- Starter
- ECM