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 B129D RAM 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 Blind Spot Module (BSM) monitors the Right Blind Spot Sensor (RBSS). The BSM integrated into the RBSS sets the OBDII code when the Blind Spot Sensor detects sensor alignment or adjustment incorrect.
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