AutoCodes - OBDII Code List - B12BC MERCURY

B12BC MERCURY - Mirror Position Sensor Supply Circuit Short To Ground

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

B12BC MERCURY Possible Causes

  • 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 do I fix code B12BC 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.
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Cost of diagnosing the B12BC MERCURY code

Labor: 1.0

The cost of diagnosing the B12BC 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)

B12BC MERCURY Description

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.
OBDII Code B12bc Mercury - Mirror Position Sensor Supply Circuit Short To Ground -

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