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
- Cooling fan relay No. 1 malfunction
- Open circuit in wiring between cooling fan relay No. 1 terminal "A" and PCM terminal "4L" (Red/black wire)
- Open circuit in wiring between ignition switch and cooling fan relay No. 1 terminal "E" (Green/Black wire)
- PCM malfunction
- Short to ground in wiring between cooling fan relay No. 1 terminal "A" and PCM terminal "4L" (Red/Black wire)
- Short to power circuit between cooling fan relay No. 1 terminal "A" and PCM terminal "4L" (Red/Black wire)