Possible Causes
WARNING: This page is about a different car, the 2002 Mazda B4000, 2002 Mazda B3000, and 2002 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- CMP sensor circuit open.
- CMP sensor circuit shorted to ground.
- CMP sensor circuit shorted to power.
- SIG RTN circuit open.
- Damaged CMP sensor.
- Damaged CMP sensor shielding.
- Damaged PCM.