AutoCodes – Generic – B2346

B2346 Code - Mirror Switch Reference Voltage Positive Common Open Circuit

Quick Answer

The Body Control Module (BCM) monitors the Mirror Switch. Common causes include Faulty Mirror Switch, Mirror Switch harness is open or shorted, Mirror Switch 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: B2346 indicates Mirror Switch Reference Voltage Positive Common Open Circuit.
Common causes: Common causes include Faulty Mirror Switch, Mirror Switch harness is open or shorted, Mirror Switch 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 4,472

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 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2346 Description

The Body Control Module (BCM) monitors the Mirror Switch. The BCM sets the OBDII code when the Mirror Switch is not to factory specifications.

OBDII Code B2346 - Mirror Switch Reference Voltage Positive Common Open Circuit - AutoCodes.com — B2346 Code - Mirror Switch Reference Voltage Positive Common Open Circuit

What does this mean?

What are the Possible Causes of the DTC B2346?

Faulty Mirror Switch
Mirror Switch harness is open or shorted
Mirror Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2346?

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 B2346 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.

Need more information about the B2346 code?

Need more information on how to fix the B2346 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2346 code diagnosed by a professional: Find a repair shop in your area

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 B2346 Code

1. What are the common symptoms of OBDII code B2346?

When this code is present, you may experience issues with the power mirrors not functioning properly, or the mirror switch not responding.

2. What could cause the OBDII code B2346 to trigger?

The code B2346 is usually triggered by an open circuit in the mirror switch reference voltage positive common circuit, which can be caused by wiring issues or a faulty mirror switch.

3. How can I diagnose the OBDII code B2346?

To diagnose this code, you will need to inspect the wiring and connections related to the mirror switch, as well as test the mirror switch itself using a multimeter.

4. What are some repair tips for resolving OBDII code B2346?

Start by checking the wiring and connections for any damage or corrosion. If everything looks good, consider replacing the mirror switch to see if that resolves the issue.

5. Can I drive my vehicle with the OBDII code B2346 present?

While it may be possible to drive the vehicle with this code present, it is not recommended as it can indicate a problem with the power mirror system that may affect your ability to adjust the mirrors while driving.

6. Is OBDII code B2346 a serious issue?

While this code may not directly affect the drivability of the vehicle, it is still important to address it promptly to ensure the proper functioning of the power mirror system.

7. How much does it typically cost to repair OBDII code B2346?

The cost of repairing this code can vary depending on the underlying cause. Simple fixes like repairing wiring may be relatively inexpensive, while replacing the mirror switch could be more costly.

8. Can I clear the OBDII code B2346 without fixing the issue?

You can clear the code using an OBDII scanner, but it is recommended to address the underlying problem first to prevent the code from recurring.

9. Will OBDII code B2346 cause my check engine light to come on?

Yes, OBDII code B2346 can trigger the check engine light or another warning light on the dashboard to alert you to an issue with the power mirror system.

10. How can I prevent OBDII code B2346 from occurring in the future?

Regularly inspecting and maintaining the power mirror system, including the mirror switch and wiring, can help prevent issues that may trigger this code.