B1739 Code - Mirror Driver Horizontal Switch Circuit Short To Battery
Quick Answer
The diagnostic trouble code (DTC) B1739 indicates that there is a short circuit to the battery in the mirror driver horizontal switch circuit. Common causes include Wiring harness damage or short circuit, Faulty mirror control switch, Corrosion or loose connections in the circuit. 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
- B1739 indicates Mirror Driver Horizontal Switch Circuit Short To Battery.
- Common causes
- Common causes include Wiring harness damage or short circuit, Faulty mirror control switch, Corrosion or loose connections in the circuit.
- 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 B1739 Description
The diagnostic trouble code (DTC) B1739 indicates that there is a short circuit to the battery in the mirror driver horizontal switch circuit. This means that there is an electrical issue within the circuit that controls the horizontal movement of the driver's side mirror. The mirror driver horizontal switch is responsible for adjusting the mirror position horizontally, allowing the driver to have proper visibility while operating the vehicle.
Common Causes of B1739
- Wiring harness damage or short circuit.
- Faulty mirror control switch.
- Corrosion or loose connections in the circuit.
- Electrical system malfunction.
- Defective mirror motor.
Symptoms of B1739
- Inability to adjust the driver's side mirror horizontally.
- Erratic movement of the mirror when attempting to adjust it.
- Mirror moving in the wrong direction or getting stuck.
- Warning light on the dashboard related to the mirror system.
How to Fix B1739
- Diagnose the issue using a multimeter to test the continuity of the circuit.
- Inspect the wiring harness for any damage or shorts and repair as necessary.
- Check the mirror control switch for proper functionality and replace if faulty.
- Clean and secure any loose connections in the circuit.
- Replace the mirror motor if found to be defective.
Cost to Fix B1739
The cost of repairing a mirror driver horizontal switch circuit short to battery can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs can range from $100 to $300, including parts and labor. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.
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Code B1739 Information for Specific Makes
- B1739 Hyundai — Pressure-Side Impact Sensor Front Driver Defect
- B1739 KIA — Pressure-Side Impact Sensor Front Driver Defect
Frequently Asked Questions about B1739 Code
1. What are the common symptoms of OBDII code B1739 (Mirror Driver Horizontal Switch Circuit Short To Battery)?
Symptoms may include inoperative power mirrors, erratic mirror movement, or a mirror switch that does not respond.
2. What can cause OBDII code B1739 to trigger?
This code is typically triggered by a short circuit in the mirror driver horizontal switch circuit, often caused by damaged wiring or a faulty mirror switch.
3. How can I diagnose the cause of OBDII code B1739?
A thorough visual inspection of the mirror switch wiring and connectors is recommended, along with testing the switch for continuity and checking for any damaged or pinched wires.
4. Can I continue driving with OBDII code B1739 present?
While the vehicle may still be operable with this code, it is important to address the issue promptly to ensure proper functioning of the power mirrors.
5. What are some repair tips for fixing OBDII code B1739?
Repair options may include repairing or replacing damaged wiring, replacing the mirror switch if faulty, and clearing the code with an OBDII scanner.
6. Is OBDII code B1739 a serious issue?
While not a critical issue for the overall operation of the vehicle, addressing this code is important for the proper functioning of the power mirrors.
7. Can a DIY enthusiast fix OBDII code B1739?
Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code themselves by following repair guides and using appropriate resources.
8. How much does it cost to repair OBDII code B1739 at a professional auto repair shop?
Costs can vary depending on the extent of the damage and the rates of the repair shop, but typically, diagnosing and repairing this code may cost a few hundred dollars.
9. Are there any preventive measures to avoid OBDII code B1739 from occurring?
Regularly inspecting the mirror switch wiring for any signs of wear or damage, as well as using the power mirrors properly, can help prevent this code from occurring.
10. Can OBDII code B1739 affect other electrical components in the vehicle?
While this code specifically relates to the mirror driver horizontal switch circuit, electrical issues in one part of the vehicle can sometimes impact other components, so it's best to address the problem promptly.
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