AutoCodes – Lincoln – B2314 Lincoln

B2314 Lincoln Code - Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Battery

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: B2314 Lincoln indicates Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Battery.
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.

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Code Popularity 482

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 07, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2314 Lincoln Description

Under normal operation, the exterior mirror control switch receives power and ground from the circuit. The exterior mirror control switch uses circuits to send input signals to the Driver Door Module (DDM). The DDM controls the Left (LH) exterior mirror motor movement by supplying the appropriate power and ground to circuits. The DDM communicates with the Driver Seat Module (DSM) through the Medium-Speed Controller Area Network (MS-CAN) whenever the DDM receives an input signal from the exterior mirror control switch for the Right (RH) mirror. The DSM controls the RH exterior mirror motor movement by supplying the appropriate power and ground.
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.

OBDII Code B2314 Lincoln - Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Battery - AutoCodes.com — B2314 Lincoln Code - Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B2314 Lincoln?

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 B2314 Lincoln?

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 B2314 Lincoln 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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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2314 Lincoln Code

1. What does the OBDII code B2314 mean on a Lincoln?

B2314 indicates an issue with the passenger-side mirror's horizontal feedback potentiometer circuit, specifically a short to battery.

2. What are the symptoms of the B2314 code?

Symptoms may include the passenger-side mirror not adjusting horizontally, erratic movement, or failure to respond to adjustment commands.

3. What causes the B2314 code?

Common causes include damaged wiring, a short circuit in the mirror's electrical system, a faulty potentiometer, or an issue with the mirror control module.

4. How do I diagnose the B2314 code?

Diagnosis involves inspecting the wiring and connectors for damage, testing the potentiometer with a multimeter, and checking for shorts in the circuit.

5. Can a faulty passenger mirror trigger the B2314 code?

Yes, a defective mirror assembly, especially the potentiometer, can cause this code to appear.

6. Is the B2314 code a serious issue?

While it does not affect vehicle drivability, it can impair mirror functionality, which could be a safety concern.

7. How can I fix the B2314 code?

Repairs might include replacing damaged wiring, repairing shorts, or replacing the passenger-side mirror assembly if the potentiometer is faulty.

8. Can I clear the B2314 code without fixing the issue?

Clearing the code without addressing the root cause will likely result in the code returning soon after.

9. Do I need to replace the entire mirror for the B2314 code?

Not always. If the issue is with the wiring or connectors, replacing those may resolve the problem. However, if the potentiometer itself is defective, the entire mirror assembly may need replacement.

10. Can a blown fuse cause the B2314 code?

A blown fuse is unlikely to cause this specific code, as it refers to a short to battery rather than an open circuit. However, checking fuses can still be part of the troubleshooting process.