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1998 TOYOTA TACOMA
2.7L I4•RWD•AUTOMATIC•gas
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1047Torque1633Fluid17DTC3334Battery2Maintenance0Recalls5
P0484moderate severityPowertrain

Cooling Fan Circuit Over Current

on 1998 Toyota Tacoma 2.7L I4 · RWD

What this code 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

  1. Scan for stored codes
  2. Measure fan circuit current draw
  3. Inspect wiring for shorts
  4. Test fan motor resistance
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