TorqueMech OBD Code Guide
P0480 - Cooling Fan 1 Control Circuit
Cooling fan 1 control circuit fault detected.
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Estimate after confirmation
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Common Next Steps
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Pressure test cooling system
Confirm external leaks, cap behavior, and pressure loss before parts.
Inspect thermostat
Compare warm-up, scan temperature, and hose temperature behavior.
Verify radiator fan operation
Check fan command, AC-load response, fuses, relays, and airflow.
Related Inspection
Code Overview
Cooling fan 1 control circuit fault detected.
Common Causes
- Fan relay failure
- Cooling fan motor issue
- Wiring problem
- PCM control issue
Diagnostic Steps
- Command fan operation if a scan tool supports it
- Check relay, fuse, and power at the fan
- Inspect the fan harness for heat damage
Related OBD Codes
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Next Steps
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