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 B1125 ACURA 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 Door Multiplex Control Unit monitors the Driver Side Power Window Motor 'A'. The Door Multiplex Control Unit sets the OBDII code when the Driver Side Power Window Motor 'A' is not to factory specifications.
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