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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
P1671low severityPowertrain

MIL Control Circuit

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

What this code means

The PCM has detected a fault in the malfunction indicator lamp (check engine light) control circuit. The warning lamp may not operate correctly.

Symptoms

  • Check engine light stays off
  • Check engine light stays on
  • No warning lamp response

Common causes

  • Faulty MIL bulb or LED
  • Wiring open or short in MIL circuit
  • Bad instrument cluster
  • Failed PCM driver

Diagnostic steps

  1. Verify MIL operation at key-on
  2. Inspect MIL circuit wiring and connectors
  3. Test bulb/LED and cluster continuity
  4. Check PCM output and repair as needed
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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