B1839 Code - Wiper Rear Motor Circuit Failure
Quick Answer
The B1839 diagnostic trouble code indicates a Wiper Rear Motor Circuit Failure. Common causes include Faulty rear wiper motor, Wiring issues in the rear wiper circuit, Blown fuse related to the rear wiper 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
- B1839 indicates Wiper Rear Motor Circuit Failure.
- Common causes
- Common causes include Faulty rear wiper motor, Wiring issues in the rear wiper circuit, Blown fuse related to the rear wiper 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 B1839 Description
The B1839 diagnostic trouble code indicates a Wiper Rear Motor Circuit Failure. This means that there is a problem with the circuit that controls the rear wiper motor in the vehicle. The rear wiper motor is responsible for moving the rear wiper blade to clear the rear window of any debris or water. When this circuit fails, it can lead to the rear wiper not functioning properly or not working at all.
Common Causes of B1839
- Faulty rear wiper motor
- Wiring issues in the rear wiper circuit
- Blown fuse related to the rear wiper system
- Corrosion or loose connections in the wiring
- Water damage to the rear wiper motor or wiring
Symptoms of B1839
- Rear wiper not moving or functioning erratically
- Rear wiper moving slower than usual
- Rear wiper not responding to wiper switch controls
- Rear wiper making unusual noises while operating
How to Fix B1839
- Perform a visual inspection of the rear wiper motor and wiring for any visible damage.
- Check the fuse related to the rear wiper system and replace if necessary.
- Test the rear wiper motor for proper functionality and replace if it is found to be faulty.
- Inspect and repair any damaged or corroded wiring in the rear wiper circuit.
- Clear any water damage in the rear wiper motor or wiring and ensure proper sealing to prevent future issues.
Cost to Fix B1839
The cost of repairing a Wiper Rear Motor Circuit Failure can vary depending on the specific cause of the issue and the labor rates in your area. Generally, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. It's important to note that these are rough estimates and actual costs may vary. Be sure to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
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Frequently Asked Questions about B1839 Code
1. What are common symptoms of OBDII code B1839 - Wiper Rear Motor Circuit Failure?
- Common symptoms include the rear wiper not functioning, erratic rear wiper operation, or complete lack of rear wiper movement.
2. What are possible causes of OBDII code B1839?
- Potential causes include a faulty rear wiper motor, damaged wiring or connectors in the rear wiper circuit, or a malfunctioning rear wiper switch.
3. How can I diagnose the issue related to OBDII code B1839?
- Diagnose by checking the rear wiper fuse, inspecting the rear wiper motor and its connections, and testing the rear wiper switch for proper functionality.
4. What are some tips for repairing OBDII code B1839 - Wiper Rear Motor Circuit Failure?
- Repair tips include replacing the rear wiper motor if faulty, repairing or replacing damaged wiring or connectors, and ensuring proper grounding in the rear wiper circuit.
5. Can a DIY enthusiast fix OBDII code B1839 at home?
- Yes, some basic automotive knowledge and tools are usually sufficient to diagnose and repair issues related to OBDII code B1839, such as replacing the rear wiper motor or fixing wiring problems.
6. Is it safe to continue driving with OBDII code B1839 active?
- It is generally safe to drive with this code, but it is recommended to address the issue promptly to ensure proper rear visibility in inclement weather conditions.
7. How much does it typically cost to repair OBDII code B1839?
- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Can OBDII code B1839 be triggered by a simple fuse issue?
- Yes, a blown rear wiper fuse can sometimes trigger OBDII code B1839, so it's important to check and replace the fuse if necessary before proceeding with further diagnostics.
9. Are there any preventative maintenance measures to avoid OBDII code B1839 in the future?
- Regularly inspecting the rear wiper system, keeping it clean, and addressing any minor issues promptly can help prevent OBDII code B1839 from occurring.
10. Will resetting the OBDII system clear the B1839 code temporarily?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing B1839 is not fixed, the code is likely to reappear. It's best to diagnose and address the root cause of the problem.
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