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Home >> Chevrolet >> 2012 >> Volt >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC B3055 >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify that DTC B1370, B1380, or B1441 is not set.
    • If none of the DTCs are set 
  3. Verify all available keys are correct for the vehicle.
    • If a key is not correct 

      Replace the key

    • If all keys are correct 
  4. Remove the battery from each of the available vehicle keys.
  5. Verify that DTC B3055 does not set while attempting to start the vehicle which each available key. To start the vehicle with the key battery removed, the key must be placed in the key /slot.
    • If DTC B3055 sets when attempting to start the vehicle with only one of the available keys 

      Replace the appropriate key.

    • If DTC B3055 sets when attempting to start the vehicle with all of the available keys 

      Replace the K89 Immobilizer Control Module.

    • If DTC B3055 does not set 
  6. All OK.
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