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Home >> Buick >> 2016 >> Envision >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B124F: Universal Serial Bus (USB) Programming >> Circuit/System Verification
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Circuit/System Verification

WARNING: This page is about a different car, the 2016 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON/vehicle in Service Mode.
  2. Verify DTC B124F is not set.
    • If DTC B124F is set 
    1. Program the device that set the DTC.
    2. Verify the DTC does not set.
      • If DTC is set, replace the device that set the DTC.
      • If the DTC is not set
    3. All OK.
    • If DTC B124F is not set 
  3. All OK
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