| 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 ("G" signal) consist of a signal plate and pick-up coil. The "G" signal plate has one tooth on its outer circumference and is built into distributor. DTC is set when ECM malfunction for back-up occurs. Possible causes are
- Distributor.
- ECM.