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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 688 (ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM L3) (3 OF 5))DTC P0480NOTES
2008 Mazda 6 s Sport, 4D Hatchback, Standard

DTC P0480: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different car, the 2007 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0480 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0480 Cooling fan relay No. 1 control circuit malfunction
DETECTION CONDITION  California emission regulation applicable ATX model 
  • The PCM monitors the cooling fan relay No. 1 control signal voltage and current. If the following conditions are met, the PCM determines that there is the cooling fan relay No. 1 control circuit problem.
    • The PCM turns the cooling fan relay No. 1 off, but the voltage of the cooling fan relay No. 1 control signal remains low.
    • The PCM turns the cooling fan relay No. 1 on, but the current of the cooling fan relay No. 1 control signal remains high.

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 available.
  • The DTC is stored in the PCM memory.
Except for California emission regulation applicable ATX model 
  • PCM monitors cooling fan relay No. 1 control signal. If voltage remains low or high, PCM determines that fan relay No. 1 circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (Other).
  • MIL does not illuminate.
  • PENDING CODE is available if PCM detects the above malfunction condition.
  • FREEZE FRAME DATA is not available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Cooling fan relay No. 1 malfunction
  • Connector or terminal malfunction
  • Open circuit in wiring harness between ignition switch and cooling fan relay No. 1 terminal E
  • Open circuit in wiring harness between cooling fan relay No. 1 terminal A and PCM terminal 1M
  • Short to ground in wiring harness between cooling fan relay No. 1 terminal A and PCM terminal 1M
  • Short to power supply in wiring harness between cooling fan relay No. 1 terminal A and PCM terminal 1M
  • PCM malfunction
G04324034Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

NO RELATED

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