P0481moderate severityPowertrain
Cooling Fan 2 Control Circuit
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The PCM has detected a fault in the control circuit for cooling fan 2. A malfunction may reduce cooling capacity and cause overheating.
Symptoms
- Engine overheating
- Second cooling fan inoperative
- Reduced AC cooling
Common causes
- Faulty cooling fan relay
- Damaged wiring or connector
- Failed cooling fan motor
- Faulty PCM
Diagnostic steps
- Scan for stored codes
- Inspect fan 2 wiring and connectors
- Test fan 2 relay operation
- Check fan motor and PCM control
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