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 B117C 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 Liftgate/Trunk Module (LTM) monitors the sector gear open switch and sector gear close switch input circuits to determine the sector gear position. The OBDII sets when the LTM detects the sector gear open/close switch(es) are not in the correct state at the beginning of self-test, or no sector gear switch transition during releasing/cinching.
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