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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 623 (ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM])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 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0480 DETECTION & CONDITION POSSIBLE CAUSES

DTC P0480 Cooling fan No.1 control circuit problem
DETECTION CONDITION 
  • The PCM monitors the cooling fan relay No.1 control voltage when the PCM turns the cooling fan relay No.1 off. If the control voltage is low, the PCM determines that the cooling fan No.1 control circuit voltage is low.
  • The PCM monitors the cooling fan relay No.1 control voltage when the PCM turns the cooling fan relay No.1 on. If the control voltage is high, the PCM determines that the cooling fan No.1 control circuit voltage is 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 during the first drive cycle.
  • FREEZE FRAME DATA is available.
  • The 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 main relay terminal C and cooling fan relay No.1 terminal A
  • Short to ground in wiring harness between main relay terminal C and cooling fan relay No.1 terminal A
  • Open circuit in wiring harness between cooling fan relay No.1 terminal E and PCM terminal 5X
  • Short to power supply in wiring harness between cooling fan relay No.1 terminal E and PCM terminal 5X
  • Short to ground in wiring harness between cooling fan relay No.1 terminal E and PCM terminal 5X
  • PCM malfunction
G04562661Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

NO RELATED

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