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DTC P0482-00: Cooling Fan Relay No. 2 And No. 3 Control Circuit Malfunction: Notes

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DTC P0482:00 Cooling fan relay No. 2 and No. 3 control circuit malfunction
DETECTION CONDITION 
  • The cooling fan relay No. 2 and No. 3 control voltage is less than the specification or cooling fan relay No. 2 and No. 3 control current is the specification or more for a continuous 5 s  relative to the PCM control signal.

    Diagnostic support note 

    • This is a continuous monitor (other).
    • The check engine light does not illuminate.
    • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
    • DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION  Not applicable
POSSIBLE CAUSE 
  • Cooling fan relay No. 2 and/or No. 3 malfunction
  • Short to ground or open circuit in cooling fan relay No. 2 and/or No. 3 power supply circuit
    • Short to ground in wiring harness between the following terminals:
      • ENGINE3 15 A fuse-Cooling fan relay No. 2 terminal A
      • ENGINE3 15 A fuse-Cooling fan relay No. 3 terminal A
    • ENGINE3 15 A fuse malfunction
    • Open circuit in wiring harness between the following terminals:
      • Main relay terminal C-Cooling fan relay No. 2 terminal A
      • Main relay terminal C-Cooling fan relay No. 3 terminal A
    • Short to ground in wiring harness between the following terminals:
      • Cooling fan relay No. 2 terminal E-PCM terminal 2AV
      • Cooling fan relay No. 3 terminal E-PCM terminal 2AV
    • PCM connector or terminals malfunction
    • Short to power supply in wiring harness between the following terminals:
      • Cooling fan relay No. 2 terminal E-PCM terminal 2AV
      • Cooling fan relay No. 3 terminal E-PCM terminal 2AV
    • Open circuit in wiring harness between the following terminals:
      • Cooling fan relay No. 2 terminal E-PCM terminal 2AV
      • Cooling fan relay No. 3 terminal E-PCM terminal 2AV
    • PCM malfunction
G10915789