B2347 Code - Mirror Switch Reference Voltage Positive Common Supply Low Voltage
Quick Answer
The diagnostic trouble code B2347 indicates that there is a low voltage condition in the positive common supply of the mirror switch reference voltage. Common causes include Faulty mirror switch, Wiring or connector issues in the mirror switch circuit, Low voltage from the vehicle's electrical system. 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
- B2347 indicates Mirror Switch Reference Voltage Positive Common Supply Low Voltage.
- Common causes
- Common causes include Faulty mirror switch, Wiring or connector issues in the mirror switch circuit, Low voltage from the vehicle's electrical system.
- 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 B2347 Description
The diagnostic trouble code B2347 indicates that there is a low voltage condition in the positive common supply of the mirror switch reference voltage. In modern vehicles, the mirror switch reference voltage is used to control the operation of the mirrors, including adjusting their position. When this voltage supply is compromised, it can lead to malfunctions in the mirror system, affecting the driver's ability to adjust the mirrors properly.
Common Causes of B2347
- Faulty mirror switch
- Wiring or connector issues in the mirror switch circuit
- Low voltage from the vehicle's electrical system
- Malfunctioning mirror motor
- Problems with the Body Control Module (BCM) or other related modules
Symptoms of B2347
- Inability to adjust mirrors electronically
- Erratic mirror movement
- Mirror adjustment controls not responding
- Warning light on the dashboard related to mirror system
How to Fix B2347
- Perform a thorough diagnostic scan to confirm the B2347 code and identify the exact cause of the low voltage supply issue.
- Inspect the mirror switch, wiring, and connectors for any visible damage or corrosion. Repair or replace as necessary.
- Check the voltage output from the vehicle's electrical system to ensure it is within the acceptable range for the mirror switch reference voltage.
- Test the mirror motor for proper operation and replace if faulty.
- If the issue persists, consult wiring diagrams and technical service bulletins to troubleshoot more complex electrical problems.
Cost to Fix B2347
The typical repair costs for addressing a mirror switch reference voltage positive common supply low voltage issue can range from $150 to $300, depending on the specific cause of the problem and the labor rates in your area. This estimate includes the cost of parts (such as a new mirror switch or wiring harness) and labor for diagnosis and repair. Keep in mind that additional diagnostic time may be needed if multiple potential causes need to be investigated. Additionally, labor rates at auto repair shops can vary, so it's advisable to get quotes from multiple shops to find the best price for the repair.
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Frequently Asked Questions about B2347 Code
1. What does the OBDII code B2347 mean?
B2347 indicates that the mirror switch's reference voltage positive common supply is lower than expected, affecting the operation of the power mirror system.
2. What are the common symptoms of the B2347 code?
Symptoms may include unresponsive or malfunctioning power mirrors, intermittent mirror adjustments, or no response from the mirror switch.
3. What causes the B2347 code to appear?
The code can be caused by a faulty mirror switch, damaged wiring or connectors, a blown fuse, or a failure in the mirror control module.
4. How can I diagnose the B2347 code?
Check the wiring and connectors related to the mirror switch for damage or corrosion, test the mirror switch for proper function, and verify the reference voltage with a multimeter.
5. Can I still drive my car with the B2347 code?
Yes, the vehicle is still drivable, but you may lose the ability to adjust your mirrors, which can impact visibility and safety.
6. How do I fix the B2347 code?
Repairs may involve replacing the mirror switch, repairing damaged wiring or connectors, or replacing a faulty mirror control module.
7. What tools are needed to fix the B2347 code?
You’ll need a multimeter to check voltage, a basic set of hand tools, and possibly an OBDII scanner to clear the code after repairs.
8. How much does it cost to fix the B2347 code?
Costs can vary depending on the repair, but replacing a mirror switch typically costs $50-$200, while wiring repairs may cost less if done yourself.
9. Can the B2347 code clear itself?
No, the code typically won't clear itself. It must be addressed and cleared using an OBDII scanner after repairs are performed.
10. Is the B2347 code common across all vehicles?
No, it’s specific to certain vehicles with advanced mirror control systems, so it may not apply to older or less-equipped models.
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