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.
B1130:07 Light Switch Module Mechanical Failure
B1130:83 Light Switch Module Value of Signal Protection Calculation Incorrect
B1130:87 Light Switch Module Missing message
The cost to diagnose the B1130 MERCURY 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) monitors the Headlamp Switch Module. The BCM sets the OBDII code when the Headlamp Switch Module is not to factory specifications.
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