Possible Causes
WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- Connector or terminal malfunction
- Left side CMP sensor is dirty
- Left side CMP sensor malfunction
- Open circuit between left side CMP sensor harness connector terminal "A" (White/Green wire) and PCM 104-pin harness connector terminal No. 58 (Brown wire)
- Open circuit between left side CMP sensor harness connector terminal "B" (Brown/White wire) and PCM 104-pin harness connector terminal No. 59 (Yellow wire)
- PCM malfunction
- Short between left side CMP sensor harness connector terminal "A" (White/Green wire) and terminal "B" (Brown/White wire)
- Short to ground circuit between left side CMP sensor harness connector terminal "A" (White/Green wire) and PCM 104-pin harness connector terminal No. 58 (Brown wire)
- Short to ground circuit between left side CMP sensor harness connector terminal "B" (Brown/White wire) and PCM 104-pin harness connector terminal No. 59 (Yellow wire)