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Code
P0480
Cooling

Cooling fan relay 1 control circuit malfunction

The low-speed cooling fan relay circuit has a fault.

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Most likely causes

  1. Faulty fan relay
  2. Wiring fault
  3. Failed fan motor

Symptoms you may notice

  • Overheating in traffic
  • Fan never runs
  • Check engine light

Checks to run

  1. Test the relay
  2. Check fan wiring
  3. Verify fan motor operation

Tools you may need

Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Cooling

P0128

Coolant thermostat below regulating temperature

 P0115

Engine coolant temperature sensor circuit malfunction

 P0125

Insufficient coolant temperature for closed-loop fuel control

 P0117

Engine coolant temperature sensor circuit low input

 P0118

Engine coolant temperature sensor circuit high input
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