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Home >> Chevrolet >> 2016 >> Suburban 3500 HD LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC B124F: Universal Serial Bus (USB) Programming >> Circuit/System Verification

Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Yukon XL, 2015 GMC Yukon, 2015 Chevrolet Tahoe, 2015 Chevrolet Suburban, and 2015 Cadillac Escalade ESV. 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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