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 B1806 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 Instrument Cluster monitors Passenger Door Lock/Unlock Switch. When the Instrument Cluster senses voltage to the passenger door lock switch below 0.25 volts, the input circuit is not valid and this Diagnostic Trouble Code (DTC) will set.
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