P0480: Fan 1 control circuit

The computer sees a fault in the control circuit of cooling fan 1. The driver may notice high temperature in traffic or weak air conditioning at idle.

Likely causes, most common first

  • Faulty fan relay
  • Blown fuse
  • Damaged wiring or connector
  • Faulty fan motor or control module

Parts usually involved

  • Fan relay
  • Fuse
  • Cooling fan
  • Fan control module

Test before you replace

Command the fan with a scan tool, then check the relay, fuse and fan power supply.

General guidance for generic OBD2 codes. Always follow the maker's procedure for the car in front of you.

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