Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost to diagnose the B124F code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
Certain devices in the entertainment system must be programmed with specific software and other information to operate correctly. This Diagnostic Trouble Code (DTC) is the result of an unsuccessful Universal Serial Bus (USB) programming event of the device. The symptom byte information is for engineering reference only. No external circuit diagnosis is involved
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