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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 341 (Remote Functions) >> Diagnostic Information and Procedures >> DTC B310D-B310F >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Note: Verify the correct replacement part number.

  1. Ignition - On / Vehicle - In Service Mode
  2. Button Pressed @ Transponder Key
  3. Verify that no DTCs are set.
    • B310D
    • B310E
    • B310F
    • If the DTC is set 
    1. Replace the component: Battery @ Transponder Key
    2. Verify the DTC does not set.
      • If the DTC is set

        Replace the component: Keyless Entry Transmitters

      • Go to next step: If the DTC is not set
    • Go to next step: If the DTC is not set 
  4. All OK.
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