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2022 CHEVROLET BOLT EUV
65 kWh Single Motor FWD•FWD•AUTOMATIC•ev
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor318Torque3714Fluid5DTC849Battery1Maintenance0Recalls4
P1652high severityPowertrain

Fan 2 Relay Control Circuit

on 2022 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD

What this code means

The PCM detected a fault in the cooling fan 2 relay control circuit. The secondary cooling fan may not operate, reducing cooling capacity.

Symptoms

  • Engine overheating under load
  • Second fan not running
  • Check engine light on

Common causes

  • Faulty fan relay
  • Wiring or connector fault
  • Short or open in control circuit
  • Faulty PCM

Diagnostic steps

  1. Check fan 2 relay operation
  2. Inspect relay control wiring
  3. Test PCM control signal
  4. Replace relay or repair circuit
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