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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 595 (Remote Functions) >> Diagnostic Information and Procedures >> DTC B3121 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2021 Cadillac XT6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTC B3122, B3123, or B3124 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Refer to Circuit/System Testing.