B1407 Driver Power Window Up Circuit Open

How to Fix B1407 Driver Power Window Up Circuit Open


If you’re experiencing the B1407 error code on your car, it means that there’s an issue with the driver power window up circuit. This can be frustrating, especially if you rely on your car’s power windows to function properly. However, with a little bit of know-how and some DIY skills, you can fix this problem yourself. In this article, we’ll walk you through the steps to fix the B1407 error code and get your power windows working again.

Step 1: Diagnose the Problem

Before you can fix the B1407 error code, you need to diagnose the problem. Start by checking the fuse box to see if any of the fuses related to the power windows are blown. If the fuses are intact, you’ll need to use a multimeter to test the power window switch and motor. If the switch and motor are functioning properly, the issue may be with the wiring or the control module.

Step 2: Check the Wiring

If the switch and motor are working correctly, the next step is to check the wiring. Start by inspecting the wiring harness for any signs of damage or wear. If you notice any frayed wires or loose connections, you’ll need to repair or replace the affected parts. You can use a wire stripper and crimping tool to make the necessary repairs.

Step 3: Replace the Control Module

If the wiring is intact, the issue may be with the control module. The control module is responsible for regulating the power windows, and if it’s malfunctioning, it can cause the B1407 error code. To replace the control module, you’ll need to locate it in your car and remove it. You can then install a new control module and test the power windows to ensure they’re working correctly.

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Step 4: Test the Power Windows

Once you’ve completed the necessary repairs, it’s time to test the power windows. Start by turning on the ignition and pressing the power window switch. If the windows go up and down smoothly, you’ve successfully fixed the B1407 error code. If the problem persists, you may need to repeat the previous steps or seek professional help.


Fixing the B1407 error code may seem daunting, but with the right tools and knowledge, it’s a task that you can complete yourself. By following the steps outlined in this article, you can diagnose and repair the issue with your power windows and get back on the road in no time.


1. Can I fix the B1407 error code myself?

Yes, you can fix the B1407 error code yourself with the right tools and knowledge. However, if you’re not comfortable working on your car’s electrical system, it’s best to seek professional help.

2. How long does it take to fix the B1407 error code?

The time it takes to fix the B1407 error code depends on the severity of the issue and your level of experience. It can take anywhere from a few hours to a full day to complete the necessary repairs.

3. How can I prevent the B1407 error code from happening again?

To prevent the B1407 error code from happening again, it’s essential to maintain your car’s electrical system regularly. This includes checking the fuses, inspecting the wiring, and testing the power windows periodically. Additionally, avoid using the power windows excessively, as this can put a strain on the system and cause issues over time.