How to Diagnose and Solve B1985 Seat Switch Lumbar Deflate Circuit Failure Issues

Introduction

Car seats are an essential part of any vehicle, and they come with various features to make them comfortable and adjustable. One of these features is the lumbar support system, which helps to reduce back pain and discomfort during long drives. However, if you’re experiencing issues with your lumbar support system, it could be due to a B1985 seat switch lumbar deflate circuit failure. In this article, we’ll discuss how to diagnose and solve this issue.

What is a B1985 Seat Switch Lumbar Deflate Circuit Failure?

A B1985 seat switch lumbar deflate circuit failure is a common issue that occurs in car seats. It happens when the lumbar support system fails to deflate, causing discomfort and pain to the driver or passenger. This issue is caused by a malfunction in the seat switch lumbar deflate circuit, which can be due to various reasons.

Diagnosing the Issue

To diagnose the B1985 seat switch lumbar deflate circuit failure, you’ll need to follow these steps:

Step 1: Check the Fuse

The first thing you should do is check the fuse for the lumbar support system. If the fuse is blown, it could be the reason why the lumbar support system is not working correctly. You can check the fuse by using a multimeter or a test light.

Step 2: Check the Wiring

If the fuse is not the issue, the next step is to check the wiring for any damages or loose connections. You can use a wiring diagram to locate the lumbar support system’s wiring and check for any damages or loose connections.

Step 3: Check the Lumbar Support System

If the wiring is not the issue, the next step is to check the lumbar support system itself. You can do this by using a diagnostic tool to scan the car’s computer system for any error codes related to the lumbar support system. If there are any error codes, it could be an indication that the lumbar support system is faulty and needs to be replaced.

Solving the Issue

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

Replace the Fuse

If the fuse is blown, you can replace it with a new one. Make sure to use the correct fuse size and type for your car’s lumbar support system.

Repair the Wiring

If the wiring is damaged or has loose connections, you can repair it by soldering or crimping the wires back together. Make sure to use the correct wire gauge and color code for your car’s lumbar support system.

Replace the Lumbar Support System

If the lumbar support system is faulty, you’ll need to replace it with a new one. You can purchase a new lumbar support system from your car’s manufacturer or a reputable auto parts store.

Conclusion

A B1985 seat switch lumbar deflate circuit failure can be a frustrating issue to deal with, but it’s essential to diagnose and solve it as soon as possible. By following the steps outlined in this article, you can diagnose and solve the issue quickly and efficiently.

FAQs

1. Can I still drive my car if the lumbar support system is not working?

Yes, you can still drive your car if the lumbar support system is not working. However, it may cause discomfort and pain during long drives.

2. How much does it cost to replace a lumbar support system?

The cost of replacing a lumbar support system varies depending on the car’s make and model. It can range from $100 to $500.

3. Can I replace the lumbar support system myself?

It’s possible to replace the lumbar support system yourself if you have the necessary tools and knowledge. However, it’s recommended to seek professional help to ensure the job is done correctly.