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.
B12C4:11 Mirror Turn Indicator Circuit Short To Ground
B12C4:15 Mirror Turn Indicator Circuit Short To Battery Or Open
The cost to diagnose the B12C4 Ford 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.
The Driver Door Module (DDM) monitors the Mirror Turn Indicator Circuit. The DDM sets the OBDII code when the Mirror Turn Indicator Circuit is not to factory specifications.
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