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B12C4 Ford Code - Mirror Turn Indicator Circuit Short

- Code Popularity: 2,751 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B12C4 Ford?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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)
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How to Fix the DTC B12C4 Ford?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B12C4:11 Mirror Turn Indicator Circuit Short To Ground
B12C4:15 Mirror Turn Indicator Circuit Short To Battery Or Open

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B12C4 Ford code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B12C4 Ford Description

The 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.

OBDII Code B12C4 Ford - Mirror Turn Indicator Circuit Short - AutoCodes.com
B12C4 Ford Code - Mirror Turn Indicator Circuit Short

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Code B12C4 Ford comments

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