Without Fan Control Module Relay
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DTC P0480:00 |
Fan control circuit |
| DETECTION CONDITION |
- This test inspect the fan control circuit. The DTC sets if the PCM detects the voltage on the fan control variable circuit is not within the expected range.
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| POSSIBLE CAUSE |
- Fan control module connector or terminal malfunction
- Open circuit between fan control module terminal D and FAN fuse
- FAN fuse malfunction
- Short to ground circuit between fan control module terminal D and FAN fuse
- Open circuit between fan control module terminal A and body ground
- Short to power supply between fan control module terminal C and PCM terminal 1BR
- Short to ground circuit between fan control module terminal C and PCM terminal 1BR
- PCM connector or terminal malfunction
- Open circuit between fan control module terminal C and PCM terminal 1BR
- Fan control module malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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