How to Fix B1394 Power Door Memory Lock Relay Circuit Short to Battery

Introduction

If you’re experiencing issues with your car’s power door locks, it could be due to a short circuit in the B1394 power door memory lock relay circuit. This can be a frustrating problem to deal with, but fortunately, it’s something that can be fixed with a little bit of know-how and some basic tools. In this article, we’ll walk you through the steps you need to take to fix this issue and get your power door locks working properly again.

Step 1: Diagnose the Problem

Before you can fix the issue, you need to diagnose what’s causing it. Start by checking the fuse for the power door locks. If the fuse is blown, replace it and see if that fixes the problem. If the fuse is fine, you’ll need to move on to checking the power door memory lock relay circuit.

Step 2: Locate the Relay

The power door memory lock relay circuit is located in the fuse box under the hood of your car. Look for the relay labeled “Power Door Locks” or “Memory Lock Relay.” Once you’ve located the relay, remove it from the fuse box.

Step 3: Check the Wiring

With the relay removed, inspect the wiring for any signs of damage or wear. Look for frayed wires, loose connections, or any other issues that could be causing a short circuit. If you find any problems, repair or replace the wiring as needed.

Step 4: Test the Relay

Next, you’ll need to test the relay to see if it’s functioning properly. To do this, use a multimeter to check the resistance across the relay’s terminals. If the resistance is within the manufacturer’s specifications, the relay is likely functioning properly. If the resistance is outside of the specifications, you’ll need to replace the relay.

Step 5: Replace the Relay

If you’ve determined that the relay is faulty, you’ll need to replace it. Simply insert the new relay into the fuse box and test the power door locks to make sure they’re working properly.

Step 6: Test the System

Once you’ve replaced the relay, test the power door locks to make sure they’re working properly. If they’re still not functioning correctly, you may need to take your car to a mechanic to have the system diagnosed and repaired.

Conclusion

Dealing with a short circuit in the B1394 power door memory lock relay circuit can be frustrating, but with the right tools and knowledge, it’s something that can be fixed. By following the steps outlined in this article, you can diagnose and repair the issue and get your power door locks working properly again.

FAQs

1. Can I fix a short circuit in the B1394 power door memory lock relay circuit myself?

Yes, with the right tools and knowledge, you can fix this issue yourself. However, if you’re not comfortable working on your car’s electrical system, it’s best to take it to a mechanic.

2. How do I know if the relay is faulty?

You can test the relay using a multimeter to check the resistance across its terminals. If the resistance is outside of the manufacturer’s specifications, the relay is likely faulty and needs to be replaced.

3. What should I do if the power door locks still aren’t working after I’ve replaced the relay?

If the power door locks still aren’t functioning properly after you’ve replaced the relay, you may need to take your car to a mechanic to have the system diagnosed and repaired.