B12C4 MERCURY - Mirror Turn Indicator Circuit Short
B12C4 MERCURY Possible Causes
- Faulty Mirror Turn Indicator
- Mirror Turn Indicator harness is open or shorted
- Mirror Turn Indicator circuit poor electrical connection
- Faulty Driver Door Module (DDM)
How is the B12C4 MERCURY code repair?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.
B12C4:15 Mirror Turn Indicator Circuit Short To Battery Or Open
What is the cost to diagnose the B12C4 MERCURY code
Labor: 1.0The cost to diagnose the B12C4 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
How much do you know about cars?
Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge
- Engine Light ON (or Service Engine Soon Warning Light)
B12C4 MERCURY MeaningThe Driver Door Module (DDM) monitors the Mirror Turn Indicator Circuit. The DDM sets the OBDII code when the Mirror Turn Indicator Circuit is not to factory specifications.
More InformationNeed more information on how to fix the B12C4 MERCURY code?
Get Access to Factory Service Manuals