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Home >> GMC >> 2022 >> Terrain AT4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B3976 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the engine starts with each available key.
    • If the engine does not start with a key 

      Replace the key.

    • Go to next step: If the engine starts with all keys 
  2. All OK.
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