How to Fix B1401 Driver Power Window One Touch Window Relay Circuit Short to Ground

Introduction

If you’re experiencing issues with your car’s power windows, specifically the B1401 Driver Power Window One Touch Window Relay Circuit Short to Ground error code, you’re not alone. This error code can be frustrating, but with the right tools and knowledge, you can fix it yourself. In this article, we’ll provide step-by-step instructions on how to fix this error code and get your power windows working again.

What is the B1401 Error Code?

The B1401 error code is a diagnostic trouble code (DTC) that indicates a problem with the driver power window one-touch window relay circuit. This error code is typically caused by a short to ground in the circuit, which can be caused by a variety of issues, including a faulty relay, damaged wiring, or a malfunctioning switch.

Tools You’ll Need

Before you begin fixing the B1401 error code, you’ll need to gather a few tools. Here’s what you’ll need:

• Socket set
• Multimeter
• Wire strippers
• Electrical tape
• Replacement relay (if necessary)

Step-by-Step Guide to Fixing the B1401 Error Code

Now that you have your tools ready, let’s get started on fixing the B1401 error code. Follow these steps:

Step 1: Disconnect the Battery

Before you begin working on your car’s electrical system, it’s important to disconnect the battery to prevent any electrical shocks or damage. Use your socket set to disconnect the negative battery cable.

Step 2: Locate the Relay

The first step in fixing the B1401 error code is to locate the relay. The relay is typically located in the fuse box under the hood of your car. Consult your car’s owner’s manual for the exact location.

Step 3: Test the Relay

Using your multimeter, test the relay to see if it’s functioning properly. Set your multimeter to the continuity setting and touch the probes to the relay’s terminals. If the relay is functioning properly, you should hear a clicking sound.

Step 4: Check the Wiring

If the relay is functioning properly, the next step is to check the wiring. Use your wire strippers to strip a small section of the wire and use your multimeter to test for continuity. If there is no continuity, the wiring is damaged and will need to be replaced.

Step 5: Replace the Relay

If the relay is not functioning properly, you’ll need to replace it. Use your socket set to remove the old relay and replace it with a new one.

Step 6: Reconnect the Battery

Once you’ve replaced the relay or fixed the wiring, it’s time to reconnect the battery. Use your socket set to reconnect the negative battery cable.

Conclusion

Fixing the B1401 error code may seem daunting, but with the right tools and knowledge, it’s a task that can be accomplished by anyone. By following the steps outlined in this article, you can fix the error code and get your power windows working again.

FAQs

1. Can I fix the B1401 error code myself?

Yes, you can fix the B1401 error code yourself with the right tools and knowledge. Follow the step-by-step guide outlined in this article to fix the error code.

2. How do I know if the relay is faulty?

You can test the relay using a multimeter. Set your multimeter to the continuity setting and touch the probes to the relay’s terminals. If the relay is functioning properly, you should hear a clicking sound.

3. What if the wiring is damaged?

If the wiring is damaged, it will need to be replaced. Use your wire strippers to strip a small section of the wire and use your multimeter to test for continuity. If there is no continuity, the wiring is damaged and will need to be replaced.