How to Fix B1399 Driver Power Window One Touch Window Relay Circuit Open

Introduction

If you’re experiencing issues with your car’s power windows, specifically the B1399 Driver Power Window One Touch Window Relay Circuit Open 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 you with step-by-step instructions on how to fix the B1399 error code and get your power windows working again.

What is the B1399 Error Code?

The B1399 error code is a common issue that occurs in power windows. It indicates that there is an open circuit in the driver power window one-touch relay. This can be caused by a variety of factors, including a faulty relay, damaged wiring, or a malfunctioning switch. When this error code appears, your power windows may not work properly, or they may not work at all.

Tools You’ll Need

Before you begin fixing the B1399 error code, you’ll need to gather a few tools. These include:

– A multimeter
– Wire strippers
– Electrical tape
– A soldering iron
– A replacement relay (if necessary)

Step-by-Step Guide to Fixing the B1399 Error Code

Now that you have your tools ready, let’s get started on fixing the B1399 error code. Follow these steps:

Step 1: Disconnect the Battery

Before you begin working on your power windows, it’s important to disconnect the battery to avoid any electrical shocks. Locate the battery in your car and use a wrench to loosen the negative cable. Once it’s loose, remove the cable from the battery and set it aside.

Step 2: Remove the Door Panel

To access the power window relay, you’ll need to remove the door panel. Use a screwdriver to remove any screws holding the panel in place, then gently pry the panel away from the door. Be careful not to damage any wires or clips as you remove the panel.

Step 3: Locate the Power Window Relay

Once you’ve removed the door panel, you should be able to locate the power window relay. It’s usually located near the power window switch. Use your multimeter to test the relay and determine if it’s faulty. If the relay is faulty, you’ll need to replace it.

Step 4: Check the Wiring

If the relay is not faulty, the next step is to check the wiring. Look for any damaged or frayed wires that may be causing the open circuit. Use your wire strippers to remove any damaged sections of wire, then use electrical tape to secure the wires back together.

Step 5: Solder the Connections

If the wiring is not the issue, the problem may be with the connections. Use your soldering iron to solder any loose or weak connections. This will ensure that the circuit is complete and that the power window relay is functioning properly.

Step 6: Reassemble the Door Panel

Once you’ve fixed the issue, it’s time to reassemble the door panel. Carefully reattach any wires or clips that you may have disconnected, then replace any screws that were removed. Finally, snap the panel back into place.

Step 7: Reconnect the Battery

The final step is to reconnect the battery. Reattach the negative cable to the battery and tighten it with your wrench. Once it’s secure, turn on your car and test the power windows to ensure that they’re working properly.

Conclusion

Fixing the B1399 error code in your power windows may seem daunting, but with the right tools and knowledge, it’s a task that you can easily accomplish yourself. By following the steps outlined in this article, you can get your power windows working again in no time.

FAQs

1. Can I fix the B1399 error code myself?

Yes, you can fix the B1399 error code yourself with the right tools and knowledge. Follow the step-by-step guide outlined in this article to fix the issue.

2. What causes the B1399 error code?

The B1399 error code is caused by an open circuit in the driver power window one-touch relay. This can be caused by a faulty relay, damaged wiring, or a malfunctioning switch.

3. Do I need to replace the power window relay?

If the power window relay is faulty, you’ll need to replace it. Use your multimeter to test the relay and determine if it’s the cause of the issue. If it is, purchase a replacement relay and follow the steps outlined in this article to replace it.