B2312 Mercury Code - Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure
Quick Answer
Under normal operation, the exterior mirror control switch receives power and ground from the circuit. Common causes include Faulty Passenger Exterior Mirror, Passenger Exterior Mirror harness is open or shorted, Passenger Exterior Mirror circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2312 Mercury indicates Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure.
- Common causes
- Common causes include Faulty Passenger Exterior Mirror, Passenger Exterior Mirror harness is open or shorted, Passenger Exterior Mirror circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2312 Mercury Description
The memory mirror system uses feedback potentiometers, located in the LH and RH exterior mirrors, in order to track the movement of the LH and RH exterior mirror motors. The DDM supplies the LH and RH exterior mirror feedback potentiometer reference voltage and ground through circuits. The DDM receives feedback from the LH and RH exterior mirror feedback potentiometer through left/right and up/down circuits.
What are the Possible Causes of the DTC B2312 Mercury?
- Faulty Passenger Exterior Mirror
- Passenger Exterior Mirror harness is open or shorted
- Passenger Exterior Mirror circuit poor electrical connection
- Faulty Passenger Exterior Mirror Control Switch
- Faulty Driver Door Module (DDM)
- Faulty Driver Seat Module (DSM)
How to Fix the DTC B2312 Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2312 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B2312 Mercury Code
1. What are the common symptoms of OBDII code B2312 in a Mercury related to the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure?
- Common symptoms include erratic movement of the passenger side mirror, inability to adjust the mirror horizontally, or complete mirror failure.
2. What usually causes the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure code B2312 in a Mercury?
- The most common causes are a faulty mirror feedback potentiometer, wiring issues, or a malfunctioning mirror control module.
3. How can I diagnose the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure in my Mercury?
- To diagnose this issue, you can use an OBDII scanner to retrieve the specific B2312 code, visually inspect the mirror wiring and connections, and test the feedback potentiometer for proper functionality.
4. Can I repair the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure in my Mercury myself?
- Depending on your skill level, you may be able to repair this issue yourself by replacing the faulty mirror feedback potentiometer, repairing any damaged wiring, or resetting the mirror control module.
5. Is it safe to continue driving my Mercury with the B2312 code related to the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure?
- While it may be possible to drive with this issue, it is not recommended as it can affect your visibility and safety on the road. It's best to address the problem promptly.
6. Are there any temporary fixes I can try for the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure code B2312 in my Mercury?
- Temporary fixes may include manually adjusting the mirror position, disconnecting and reconnecting the mirror power source, or resetting the mirror control module.
7. How much does it typically cost to repair the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure in a Mercury at a professional auto repair shop?
- The cost of repair can vary depending on the extent of the issue and the labor rates of the repair shop, but it generally ranges from $100 to $300.
8. Can a faulty mirror feedback potentiometer cause other electrical issues in my Mercury?
- Yes, a faulty mirror feedback potentiometer can potentially cause other electrical issues in your Mercury, especially if it affects the mirror control module or other related components.
9. Will resetting the OBDII system clear the B2312 code related to the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure in my Mercury?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.
10. How can I prevent the Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure code B2312 from occurring again in my Mercury?
- Regularly inspecting and maintaining your mirror components, avoiding excessive force when adjusting the mirrors, and addressing any electrical issues promptly can help prevent the recurrence of this code.
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