P0484
PowertrainCooling Fanmoderate severityCooling Fan Circuit Over Current
What P0484 Means
The PCM has detected excessive current in the cooling fan circuit. This often points to a shorted motor or wiring drawing too much amperage.
Symptoms
- Blown fan fuse
- Fan not running
- Engine overheating
Common Causes
- Shorted cooling fan motor
- Damaged or shorted wiring
- Faulty fan relay
- Faulty PCM
Diagnostic Steps
- Scan for stored codes
- Measure fan circuit current draw
- Inspect wiring for shorts
- Test fan motor resistance
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