Rear Window Defrost LED Circuit
Table of contents
B112D MERCURY Possible Causes
- Faulty Rear Window Defrost LED
- Rear Window Defrost LED harness is open or shorted
- Rear Window Defrost LED circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B112D MERCURY?
Check 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.
Tech Notes
- B112D:11 Rear Window Defrost LED Circuit Short to Ground
- B112D:15 Rear Window Defrost LED Circuit Short to Battery or Open
Cost of diagnosing the B112D MERCURY code
The cost of diagnosing the B112D MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B112D MERCURY Description
The Body Control Module (BCM) monitors the Rear Window Defrost LED. The BCM sets the OBDII code when the Rear Window Defrost LED is not to factory specifications.