Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2007 >> 3 Mazdaspeed, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic (Engine Control System L3 With TC) - (4 Of 5) >> DTC P0480 >> Notes

DTC P0480: Notes

DTC P0480 [L3 WITH TC] DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0480 Fan control circuit problem
DETECTION CONDITION 
  • The PCM monitors the input voltage from the fan control module No. 1. If the voltage remains low or high, the PCM determines that the fan control circuit has a malfunction.

Diagnostic support note 
  • This is a continuous monitor (Other).
  • The MIL does not illuminate.
  • FREEZE FRAME DATA is not available.
  • The DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • Fan control module No. 1 malfunction
  • Connector or terminal malfunction
  • Short to the power supply in the wiring harness between fan control module No. 1 terminal 1B and PCM terminal 1AE
  • Short to ground in the wiring harness between fan control module No. 1 terminal 1B and PCM terminal 1 AE
  • Open circuit in the wiring harness between fan control module No. 1 terminal 1B and PCM terminal 1AE
  • PCM malfunction
G04954394Courtesy of MAZDA MOTORS CORP.
scientia non olet · About Mike's Workshop Manuals