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 B2223 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.
Under normal operation, the exterior mirror control switch receives power and ground. The exterior mirror control switch sends input to the Driver Seat Module (DSM) for the Left (LH) exterior mirror by switching power and ground, and for the Right (RH) exterior mirror by switching power and ground. The DSM will then send the appropriate power and ground for the LH exterior mirror motor down/up and right/left, or the RH exterior mirror motor down/up and right/left circuits.
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