How to Diagnose and Solve B1684 Mirror Driver/Passenger Switch Circuit Open Issues

Introduction

If you’re experiencing issues with your car’s mirror driver/passenger switch circuit, you may see a B1684 error code. This can be frustrating, but don’t worry – with a little bit of knowledge and some DIY skills, you can diagnose and solve the problem yourself. In this article, we’ll walk you through the steps to identify the issue and provide solutions to fix it.

What is the B1684 Error Code?

The B1684 error code is related to the mirror driver/passenger switch circuit. This circuit is responsible for controlling the mirrors on your car, allowing you to adjust them to your desired position. When this circuit is open, it means that there is a break in the electrical connection, preventing the mirrors from functioning properly.

Diagnosing the Issue

To diagnose the issue, you’ll need a few tools: a multimeter, a wiring diagram for your car, and a basic understanding of electrical circuits. Here are the steps to follow:

Step 1: Check the Fuse

The first thing to check is the fuse for the mirror driver/passenger switch circuit. Locate the fuse box in your car and find the fuse for this circuit. Use your multimeter to test the fuse – if it’s blown, replace it and see if the issue is resolved.

Step 2: Check the Wiring

If the fuse is not the issue, the next step is to check the wiring for the mirror driver/passenger switch circuit. Use your wiring diagram to locate the wires for this circuit and test them with your multimeter. Look for any breaks or damage in the wiring – if you find any, repair or replace the affected wires.

Step 3: Check the Switch

If the wiring is not the issue, the problem may be with the mirror driver/passenger switch itself. Use your multimeter to test the switch – if it’s not functioning properly, replace it with a new one.

Solving the Issue

Once you’ve identified the issue, it’s time to solve it. Here are the solutions to fix the B1684 mirror driver/passenger switch circuit open issue:

Replace the Fuse

If the fuse was blown, replace it with a new one. Make sure to use the correct amperage for your car’s circuit.

Repair or Replace the Wiring

If the wiring was damaged, repair or replace the affected wires. Make sure to use the correct gauge and color-coded wires for your car’s circuit.

Replace the Switch

If the switch was not functioning properly, replace it with a new one. Make sure to use the correct switch for your car’s make and model.

Conclusion

The B1684 mirror driver/passenger switch circuit open issue can be frustrating, but with the right tools and knowledge, you can diagnose and solve the problem yourself. Remember to check the fuse, wiring, and switch, and use the appropriate solutions to fix the issue.

FAQs

1. Can I drive my car with a B1684 error code?

It’s not recommended to drive your car with a B1684 error code, as it can affect the functionality of your mirrors. It’s best to diagnose and solve the issue before driving your car.

2. How do I know if the mirror driver/passenger switch is the issue?

Use your multimeter to test the switch – if it’s not functioning properly, it may be the issue. You can also try swapping the switch with a known working one to see if the problem is resolved.

3. Can I fix the wiring myself?

If you have a basic understanding of electrical circuits and the right tools, you can repair or replace the wiring yourself. However, if you’re not confident in your skills, it’s best to seek professional help.