Engine and gearbox (P)
P0480: Cooling fan control circuit
The engine control unit is unable to operate the cooling fan circuit correctly. This can lead to overheating if not addressed.
Checked by a licensed car technician · last reviewed 29 September 2026
Symptoms
- Engine overheating
- Cooling fan not running
- Illuminated engine light
- Temperature gauge reading high
Common causes
- Faulty fan relay
- Defective fan motor
- Wiring fault
- Blown fuse
- Faulty engine control unit
How to check it yourself
- Inspect the fuse for the cooling fan
- Check the fan relay for proper operation
- Examine the fan motor for damage
- Inspect wiring for damage or disconnection
- Use a scan tool to command the fan
Can I keep driving?
Do not drive the car if it is overheating. Address the issue promptly to avoid engine damage.
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer