How to Fix B1347 Heated Backlite Relay Circuit Failure
Introduction
If you’re experiencing a B1347 Heated Backlite Relay Circuit Failure, don’t worry, you’re not alone. This is a common issue that many car owners face, and fortunately, it’s not too difficult to fix. In this article, we’ll provide you with step-by-step instructions on how to fix this problem and get your car back on the road.
What is B1347 Heated Backlite Relay Circuit Failure?
B1347 Heated Backlite Relay Circuit Failure is a diagnostic trouble code (DTC) that indicates a problem with the heated backlite relay circuit. The heated backlite is the rear window defroster, which is used to clear fog and frost from the rear window. When this circuit fails, the heated backlite will not function properly, which can be a safety hazard.
Step-by-Step Guide to Fixing B1347 Heated Backlite Relay Circuit Failure
Step 1: Check the Fuse
The first thing you should do when you encounter a B1347 Heated Backlite Relay Circuit Failure is to check the fuse. The fuse is located in the fuse box, which is usually located under the dashboard or in the engine compartment. Look for the fuse labeled “Heated Backlite” or “Rear Defroster” and check to see if it’s blown. If it is, replace it with a new fuse of the same amperage.
Step 2: Check the Relay
If the fuse is not the problem, the next thing you should check is the relay. The relay is a small electronic component that controls the flow of electricity to the heated backlite. It’s usually located in the fuse box or in a separate relay box. Use a multimeter to test the relay and make sure it’s functioning properly. If it’s not, replace it with a new relay.
Step 3: Check the Wiring
If the fuse and relay are both functioning properly, the next thing you should check is the wiring. Look for any signs of damage or corrosion in the wiring that connects the relay to the heated backlite. Use a multimeter to test the wiring and make sure there’s no break in the circuit. If there is, repair or replace the damaged wiring.
Step 4: Check the Heated Backlite
If the wiring is not the problem, the last thing you should check is the heated backlite itself. Use a multimeter to test the backlite and make sure it’s functioning properly. If it’s not, replace it with a new backlite.
Conclusion
Fixing a B1347 Heated Backlite Relay Circuit Failure is not too difficult, but it does require some basic knowledge of car electronics. By following the steps outlined in this article, you should be able to diagnose and fix the problem yourself. If you’re not comfortable working with car electronics, it’s always best to take your car to a professional mechanic.
FAQs
1. Can I still drive my car if the heated backlite is not working?
Yes, you can still drive your car if the heated backlite is not working. However, it’s important to keep in mind that the rear window may fog up or frost over, which can impair your visibility. It’s best to get the problem fixed as soon as possible.
2. How much does it cost to fix a B1347 Heated Backlite Relay Circuit Failure?
The cost of fixing a B1347 Heated Backlite Relay Circuit Failure can vary depending on the cause of the problem and the make and model of your car. In general, you can expect to pay anywhere from $50 to $200 for parts and labor.
3. Can I fix a B1347 Heated Backlite Relay Circuit Failure myself?
Yes, you can fix a B1347 Heated Backlite Relay Circuit Failure yourself if you have some basic knowledge of car electronics. However, if you’re not comfortable working with car electronics, it’s always best to take your car to a professional mechanic.
