P1481high severityPowertrain
Cooling Fan Speed Sensor Circuit
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The cooling fan speed sensor signal is faulty or out of range. This affects proper engine cooling control.
Symptoms
- Engine overheating
- Cooling fan runs erratically
- Check engine light on
Common causes
- Faulty fan speed sensor
- Damaged sensor wiring
- Bad cooling fan motor
- Poor connector contact
Diagnostic steps
- Scan for stored codes
- Check fan speed sensor signal
- Inspect wiring and connectors
- Test cooling fan operation
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