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Home >> Chevrolet >> 2011 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> DTC B3121 >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Vehicle in Service Mode.
  2. Verify that DTC B3122, B3123, or B3124 is not set.
    • If none of the DTCs are set 
  3. Refer to Circuit/System Testing.