Engine-Codes.com
Engine-Codes – Mercury – B1398 Mercury

B1398 Mercury Code - Driver Power Window One Touch Window Relay Circuit Failure

Quick Answer

The B1398 code for Mercury indicates a driver power window one-touch window relay circuit failure. Common causes include Faulty power window relay, Wiring issues or loose connections in the circuit, Power window switch malfunction. 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
B1398 Mercury indicates Driver Power Window One Touch Window Relay Circuit Failure.
Common causes
Common causes include Faulty power window relay, Wiring issues or loose connections in the circuit, Power window switch malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1398 Mercury Description

The B1398 code for Mercury indicates a driver power window one-touch window relay circuit failure. This means that there is an issue with the relay that controls the one-touch function of the driver's power window. The one-touch feature allows the window to automatically roll up or down with just one press of the button, making it a convenient feature for drivers. When this relay circuit fails, it can result in the one-touch function not working properly, requiring the driver to hold the button to move the window up or down manually.

OBDII Code B1398 Mercury - Driver Power Window One Touch Window Relay Circuit Failure
B1398 Mercury Code - Driver Power Window One Touch Window Relay Circuit Failure

Common Causes of B1398 Mercury

  1. Faulty power window relay
  2. Wiring issues or loose connections in the circuit
  3. Power window switch malfunction
  4. Electrical system issues
  5. Water damage or corrosion in the relay circuit

Symptoms of B1398 Mercury

  1. Driver's power window not responding to one-touch function
  2. Inability to close or open the driver's window with a single press of the button
  3. Delayed response or erratic behavior of the window when using the one-touch feature
  4. Unusual noises coming from the door panel when operating the window

How to Fix B1398 Mercury

  1. Begin by diagnosing the specific cause of the issue using a diagnostic tool to confirm the B1398 code.
  2. Inspect the power window relay and wiring for any visible damage or loose connections.
  3. Test the power window switch to ensure it is functioning correctly.
  4. Replace the faulty power window relay if necessary, and repair any damaged wiring or connections.
  5. Clear the diagnostic trouble codes from the vehicle's system and test the power window to ensure the one-touch function is working properly.

Cost to Fix B1398 Mercury

The typical repair costs for addressing a driver power window one-touch window relay circuit failure can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost for parts and labor for this repair may range from $150 to $300. It's important to note that additional diagnostic time and labor charges may apply, so it's recommended to consult with a professional mechanic for a more accurate estimate based on your vehicle's make and model.

Need more information about the B1398 Mercury code?

Need more information on how to fix the B1398 Mercury code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1398 Mercury 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 B1398 Mercury Code

1. What are the common symptoms of OBDII code B1398 in a Mercury related to the Driver Power Window One Touch Window Relay Circuit Failure?

The common symptoms include the power window not responding to one-touch operation, the window getting stuck in one position, or the window moving slowly or erratically.

2. What are the possible causes of OBDII code B1398 in a Mercury?

The OBDII code B1398 in a Mercury can be caused by a faulty power window relay, damaged wiring or connectors in the window circuit, or a malfunctioning power window switch.

3. How can I diagnose the OBDII code B1398 in a Mercury related to the Driver Power Window One Touch Window Relay Circuit Failure?

You can diagnose the issue by checking the power window fuse, testing the power window relay, inspecting the wiring and connectors in the window circuit, and testing the power window switch for proper operation.

4. What are some repair tips for fixing OBDII code B1398 in a Mercury?

Repair tips include replacing the faulty power window relay, repairing or replacing damaged wiring or connectors, cleaning or replacing the power window switch, and ensuring proper grounding in the window circuit.

5. Can I fix OBDII code B1398 in a Mercury myself, or do I need to take it to a professional mechanic?

If you have experience working with automotive electrical systems and the necessary tools, you may be able to fix OBDII code B1398 yourself. However, if you're unsure or uncomfortable with electrical repairs, it's best to consult a professional mechanic.

6. Is it safe to continue driving my Mercury with OBDII code B1398 related to the Driver Power Window One Touch Window Relay Circuit Failure?

While the power window may not operate properly with this issue, it is generally safe to continue driving the vehicle. However, it's recommended to address the problem promptly to avoid inconvenience and ensure the window functions correctly.

7. Are there any preventive measures to avoid encountering OBDII code B1398 in a Mercury?

To prevent OBDII code B1398, you can periodically inspect the power window system for any signs of wear or damage, avoid overloading the power window with excessive force, and promptly address any issues with the power window operation.

8. How much does it typically cost to repair OBDII code B1398 in a Mercury at a professional auto repair shop?

The cost of repairing OBDII code B1398 in a Mercury can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It's recommended to get a quote from a few different shops for comparison.

9. Can extreme weather conditions or environmental factors contribute to OBDII code B1398 in a Mercury?

Extreme weather conditions or environmental factors like moisture intrusion can potentially cause issues with the power window relay circuit, leading to OBDII code B1398 in a Mercury. It's important to keep the window system protected from such elements.

10. Will resetting the OBDII system clear the B1398 code in a Mercury?

Resetting the OBDII system may temporarily clear the B1398 code, but if the underlying issue causing the code is not addressed and repaired, the code is likely to reappear. It's recommended to diagnose and fix the root cause of the problem to prevent code recurrence.

Discuss the causes and fixes for B1398 Mercury OBDII Code

Submit a New Comment

Code B1398 Mercury comments

No comments found for this page.