How to Diagnose and Solve B1737 Mirror Driver Horizontal Switch Circuit Failure Issues

Introduction

Car problems can be frustrating, especially when you don’t know what’s causing them. One common issue that car owners face is the B1737 Mirror Driver Horizontal Switch Circuit Failure. This problem can cause your car’s mirrors to stop working, which can be a safety hazard. In this article, we’ll discuss how to diagnose and solve this issue.

What is B1737 Mirror Driver Horizontal Switch Circuit Failure?

B1737 Mirror Driver Horizontal Switch Circuit Failure is a diagnostic trouble code (DTC) that indicates a problem with the mirror driver horizontal switch circuit. This circuit is responsible for controlling the horizontal movement of your car’s mirrors. When this circuit fails, your mirrors may stop working or move erratically.

Diagnosing B1737 Mirror Driver Horizontal Switch Circuit Failure

To diagnose this issue, you’ll need a scan tool that can read DTCs. Here are the steps to follow:

Step 1: Connect the Scan Tool

Connect the scan tool to your car’s OBD-II port. This port is usually located under the dashboard on the driver’s side.

Step 2: Read the DTCs

Use the scan tool to read the DTCs. Look for the B1737 code, which indicates a problem with the mirror driver horizontal switch circuit.

Step 3: Check the Mirror Switch

Check the mirror switch to see if it’s working properly. Move the switch in different directions and see if the mirrors respond. If the mirrors don’t move or move erratically, the switch may be faulty.

Step 4: Check the Wiring

Check the wiring that connects the mirror switch to the mirror control module. Look for any signs of damage or corrosion. If the wiring is damaged, it may need to be replaced.

Step 5: Check the Mirror Control Module

Check the mirror control module to see if it’s working properly. Use a multimeter to test the voltage and resistance of the module. If the module is faulty, it may need to be replaced.

Solving B1737 Mirror Driver Horizontal Switch Circuit Failure

Once you’ve diagnosed the issue, you can take steps to solve it. Here are some solutions:

Replace the Mirror Switch

If the mirror switch is faulty, you’ll need to replace it. You can purchase a new switch from an auto parts store or online. Follow the manufacturer’s instructions to install the new switch.

Repair the Wiring

If the wiring is damaged, you’ll need to repair or replace it. You can purchase replacement wiring from an auto parts store or online. Follow the manufacturer’s instructions to install the new wiring.

Replace the Mirror Control Module

If the mirror control module is faulty, you’ll need to replace it. You can purchase a new module from an auto parts store or online. Follow the manufacturer’s instructions to install the new module.

Conclusion

B1737 Mirror Driver Horizontal Switch Circuit Failure can be a frustrating issue, but it’s not impossible to solve. By following the steps outlined in this article, you can diagnose and solve this issue and get your car’s mirrors working properly again.

FAQs

1. Can I still drive my car if the mirrors aren’t working?

Yes, you can still drive your car if the mirrors aren’t working. However, it’s important to be extra cautious when changing lanes or backing up.

2. How much does it cost to replace a mirror switch?

The cost of replacing a mirror switch varies depending on the make and model of your car. On average, you can expect to pay between $50 and $150 for a new switch.

3. Can I replace the mirror switch myself?

Yes, you can replace the mirror switch yourself if you have some experience with car repairs. However, if you’re not comfortable working on your car, it’s best to take it to a professional mechanic.