DTC P0481:00: Notes
DTC P0481:00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0481:00 |
Cooling fan relay No. 2 control circuit problem |
| DETECTION CONDITION |
- If the voltage remains low or high, the PCM determines that the cooling fan relay No. 2 control circuit has a malfunction.
Diagnostic support note
- This is a continuous monitor (other).
- The MIL does not illuminate.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Cooling fan relay No. 2 malfunction
- Short to ground or open circuit in cooling fan relay No. 2 power supply circuit
- Short to ground in wiring harness between METER 10 A fuse and cooling fan relay No. 2 terminal A
- METER 10 A fuse malfunction
- Open circuit in wiring harness between ignition switch and cooling fan relay No. 2 terminal A
- Short to ground in wiring harness between cooling fan relay No. 2 terminal E and PCM terminal 1AZ
- PCM connector or terminals malfunction
- Short to power supply in wiring harness between cooling fan relay No. 2 terminal E and PCM terminal 1AZ
- Open circuit in wiring harness between cooling fan relay No. 2 terminal E and PCM terminal 1AZ
- PCM malfunction
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