How to Fix B1343 Heated Backlite Input Circuit Failure

Introduction

If you’re experiencing a B1343 error code on your car, it means that there’s a problem with the heated backlite input circuit. This can be a frustrating issue to deal with, especially if you rely on your car’s heated backlite during the colder months. However, with a little bit of know-how and some basic tools, you can fix this problem yourself and save yourself a trip to the mechanic.

Step 1: Check the Fuse

The first thing you should do when you encounter a B1343 error code is to check the fuse. The fuse for the heated backlite input circuit is usually located in the fuse box under the dashboard or in the engine compartment. Consult your car’s manual to find the exact location of the fuse.

Once you’ve located the fuse, use a fuse tester or a multimeter to check if it’s blown. If the fuse is blown, replace it with a new one of the same amperage rating. If the new fuse blows immediately, there may be a short circuit in the wiring that needs to be addressed.

Step 2: Check the Wiring

If the fuse is not the problem, the next step is to check the wiring. Start by inspecting the wiring for any visible damage or wear. Look for frayed wires, loose connections, or any signs of corrosion.

If you don’t see any visible damage, use a multimeter to test the wiring for continuity. This will help you identify any breaks or faults in the wiring that may be causing the B1343 error code.

Step 3: Check the Backlite Element

If the wiring is not the problem, the next step is to check the backlite element itself. The backlite element is the part of the heated backlite that actually generates the heat. It’s usually located on the inside of the rear window.

To check the backlite element, use a multimeter to test for continuity. If there’s no continuity, the backlite element is faulty and needs to be replaced.

Step 4: Replace the Backlite Element

If the backlite element is faulty, you’ll need to replace it. This can be a tricky process, as the backlite element is often glued to the rear window. You’ll need to carefully remove the old element and clean the window before installing the new one.

Once you’ve installed the new backlite element, test the heated backlite to make sure it’s working properly. If everything is working as it should, the B1343 error code should disappear.

Conclusion

Dealing with a B1343 error code can be frustrating, but with a little bit of know-how and some basic tools, you can fix this problem yourself. By following these steps, you can identify and address the root cause of the problem and get your heated backlite working again in no time.

FAQs

1. Can I drive my car with a B1343 error code?

It’s generally safe to drive your car with a B1343 error code, but you won’t be able to use the heated backlite until the problem is fixed. If you live in a colder climate, this may be a significant inconvenience.

2. How much does it cost to fix a B1343 error code?

The cost of fixing a B1343 error code will depend on the root cause of the problem. If it’s a simple fix like a blown fuse, you can expect to pay very little. If the problem is more complex, like a faulty backlite element, you may need to spend a few hundred dollars to get it fixed.

3. Can I fix a B1343 error code myself?

Yes, you can fix a B1343 error code yourself if you have some basic tools and a little bit of know-how. However, if you’re not comfortable working on your car’s electrical system, it’s always best to take it to a professional mechanic.