Engine-Codes - Generic - B12A6

B12A6 Code - Mode Door Actuator Feedback Circuit Shorted To Ground

- Code Popularity: 786 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B12A6?

  • Stuck or damaged linkage or door
  • Faulty Mode Door Actuator
  • Mode Door Actuator harness is open or shorted
  • Mode Door Actuator circuit poor electrical connection
  • Electronic Manual Temperature Control (EMTC) Module
  • Electronic Automatic Temperature Control (EATC) Module

|How to Fix the B12A6 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 B12A6?

Labor: 1.0

The cost to diagnose the B12A6 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.

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|What are Code B12A6 Possible Symptoms?

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

|What Does the B12A6 Code Mean?

Under normal operation, to rotate the mode door actuator clockwise, the Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC) module supplies voltage and ground to the floor/defrost/panel mode door actuator motor through the circuit. To rotate the mode door actuator counterclockwise, the EMTC module or EATC module reverses the voltage and ground circuits.
The mode door actuator feedback resistor is supplied a ground from the EMTC module or EATC module and a 5-volt reference voltage. The EMTC module or EATC module reads the voltage on the mode door actuator feedback circuit to determine the mode door actuator position by the position of the actuator feedback resistor wiper arm.

Mode Door Actuator Feedback Circuit Shorted To Ground

|Need more Information on the B12A6 Code?

Need more information on how to fix the B12A6 code? Get Access to Factory Service Manuals

|Code B12A6 Information for Specific Makes

  • B12A6 Ford Mode Door Actuator Feedback Circuit Shorted To Ground
  • B12A6 Lincoln Mode Door Actuator Feedback Circuit Shorted To Ground
  • B12A6 Mercury Mode Door Actuator Feedback Circuit Shorted To Ground

|Need Help with the B12A6 Code?

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