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
- Open circuit between throttle body 6-pin harness connector terminal "D" (Yellow wire) and PCM 104-pin harness connector terminal No. 20 (Violet/Red wire)
- Open circuit between throttle body 6-pin harness connector terminal "F" (White wire) and PCM 104-pin harness connector terminal No. 89 (Pink/Blue wire)
- PCM malfunction
- Short to ground circuit between throttle body 6-pin harness connector terminal "F" (White wire) and PCM 104-pin harness connector terminal No. 89 (Pink/Blue wire)
- TP sensor No. 1 malfunction