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 B1017 Cadillac 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 Body Control Module (BCM) internally grounds the driver door unlock relay control circuit for the driver door unlock relay when it receives an unlock switch signal from either door lock switch. When the BCM grounds the driver door unlock relay control circuit the driver door unlock relay is energized and unlocks the driver door. The Diagnostic Trouble Code (DTC) will set if the driver door unlock relay control circuit is shorted to ground or open for more then one second.
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