Engine-Codes - Mercury - B12BC Mercury

B12BC Mercury Code - Mirror Position Sensor Supply Circuit Short To Ground

- Code Popularity: 703 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B12BC Mercury?

  • Faulty Mirror Position Sensor
  • Mirror Position Sensor harness is open or shorted
  • Mirror Position Sensor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

|How to Fix the B12BC Mercury Code?

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.

|What is the Cost to Diagnose the Code B12BC Mercury?

Labor: 1.0

The cost to diagnose the B12BC 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.

Does your Mercury have Safety Recalls? → Check here

|What are Code B12BC Mercury Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B12BC Mercury Code Mean?

The Body Control Module (BCM) monitors the Mirror Position Sensor. The BCM sets the OBDII code when the Mirror Position Sensor is not to factory specifications.

B12BC Mercury Code - Mirror Position Sensor Supply Circuit Short To Ground

|Need more Information on the B12BC Mercury Code?

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|Need Help with the B12BC Mercury Code?

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