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DTC P0480: Notes

DTC P0480 (LF, L3) DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0480 Fan control circuit problem
DETECTION CONDITION 
  • The PCM monitors the input voltages from the fan control module. If the voltage at PCM terminal 1W remains low or high, the PCM determines that fan control circuit has malfunction.

Diagnostic support note 
  • This is an 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.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Fan control module malfunction
  • Connector or terminal malfunction
  • Short to power supply in wiring harness between fan control module terminal B and PCM terminal 1 Y(1), 1W(2), 1R(3)
  • Short to ground in wiring harness between fan control module terminal B and PCM terminal 1Y(1), 1W(2), 1R(3)
  • Open circuit in wiring harness between fan control module terminal B and PCM terminal 1Y(1), 1W(2), 1R(3)
  • PCM malfunction
G04954304Courtesy of MAZDA MOTORS CORP.
(1) California emission regulation applicable model
(2) Except for California emission regulation applicable model with LF ATX
(3) Except for California emission regulation applicable model with LF MTX, L3
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