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:
- ABS/TCS/DCS malfunction
- Connector or terminal malfunction
- Open circuit between PCM 30-pin harness connector terminal "2I" and VSS 2-pin harness connector terminal "A"
- Open circuit between PCM 30-pin harness connector terminal "2L" and VSS harness connector terminal "B"
- PCM malfunction
- Short to ground between PCM 30-pin harness connector terminal "2I" and VSS harness connector terminal "A"
- Short to ground between PCM 30-pin harness connector terminal "2L" and VSS harness connector terminal "B"
- Short to power between PCM 30-pin harness connector terminal "2I" and VSS harness connector terminal "A"
- Short to power between PCM 30-pin harness connector terminal "2L" and VSS harness connector terminal "B"
- VSS malfunction