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Home >> Chevrolet >> 2018 >> Bolt EV Premier >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Function >> Diagnostic Information and Procedures >> DTC B3121 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Verify no other DTCs are set.
    • Go to next step: If no DTC is set 
  3. Refer to Circuit/System Testing.
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