LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2018 >> Regal Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B124B (without IO5/IO6) >> Circuit/System Verification

Circuit/System Verification

  1. Verify DTC B124B is not set. Since occurrences of this DTC can be caused by an incompatible or faulty USB device, review with the customer the conditions under which their concern occurred.
    • Go to next step: If DTC B124B is not set. 
  2. Ignition ON, infotainment system ON.
  3. Connect a compatible USB device to the USB port and attempt to play audio from a comparable know good vehicle.
  4. Verify audio is heard through the infotainment system while operating the USB device.
    • If audio is not heard 

      USB device is not compatible, try a different USB device.

    • Go to next step: If audio is heard 
  5. Connect a compatible USB device to the USB port and attempt to play audio from the customers vehicle.
  6. Verify audio is heard through the infotainment system while operating the USB device.
    • Go to next step: If audio is heard 

      Go to next step: All OK

scientia non olet · About LEMON Manuals