Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2006 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

DTC P0480: Notes

DTC P0480 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0480

Fan control module circuit malfunction

DETECTION CONDITION

PCM monitors input voltages from fan control module. If voltage at PCM terminal 69 remains low or high, PCM determines that fan control circuit has malfunction.

Diagnostic support note

This is a continuous monitor (other).
The MIL does not illuminate.
PENDING CODE is available if the PCM detects the above malfunction condition.
FREEZE FRAME DATA is not available.
DTC is stored in the PCM memory.

POSSIBLE CAUSE

Connector or terminal malfunction
Short to power circuit between fan control module terminal B and PCM terminal 69
Short to ground in wiring between fan control module terminal B and PCM terminal 69
Open circuit in wiring between fan control module terminal B and PCM terminal 69
Fan control module malfunction
PCM malfunction

Courtesy of MAZDA MOTORS CORP.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.