B12C4 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 do I fix code B12C4
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.
B12C4 Tech NotesB12C4:11 Mirror Turn Indicator Circuit Short To Ground
B12C4:15 Mirror Turn Indicator Circuit Short To Battery Or Open
Cost of diagnosing the B12C4 code
Labor: 1.0The cost of diagnosing the B12C4 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.
B12C4 Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B12C4 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.
B12C4 More InformationNeed more information on how to fix the B12C4 code?
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