DTC P0480:00: Notes
DTC P0480:00 (LF, L5) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0480:00 |
Cooling fan control circuit problem |
| DETECTION CONDITION |
- The PCM monitors the input voltages from the fan control module. If the voltage at the PCM terminal 1R remains low or high, the PCM determines that the fan control circuit has malfunction.
Diagnostic support note
- This is a continuous monitor (other).
- The MIL does not illuminate.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Fan control module connector or terminals malfunction
- Short to ground or open circuit in fan control module power supply circuit
- Short to ground in wiring harness between battery positive terminal and fan control module terminal 1D
- FAN1 40 A fuse malfunction
- Open circuit in wiring harness between battery positive terminal and fan control module terminal 1D
- Short to ground in wiring harness between fan control module terminal 1C and PCM terminal 1R
- PCM connector or terminals malfunction
- Short to power supply in wiring harness between fan control module terminal 1C and PCM terminal 1R
- Open circuit in wiring harness between fan control module terminal 1C and PCM terminal 1R
- Fan control module malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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