How to Fix B1304 Accessory Delay Relay Coil Circuit Short to Battery

Introduction

If you’re experiencing issues with your car’s electrical system, specifically the B1304 Accessory Delay Relay Coil Circuit Short to Battery, you’re not alone. This problem can be frustrating and confusing, but with the right knowledge and tools, you can fix it yourself. In this article, we’ll provide step-by-step instructions and useful tips to help you address this issue.

What is the B1304 Accessory Delay Relay Coil Circuit Short to Battery?

The B1304 Accessory Delay Relay Coil Circuit Short to Battery is a diagnostic trouble code (DTC) that indicates a problem with the electrical system in your car. Specifically, it means that there is a short circuit in the accessory delay relay coil circuit, which is responsible for controlling the power to certain accessories in your car, such as the radio, power windows, and interior lights.

Step-by-Step Guide to Fixing the B1304 Accessory Delay Relay Coil Circuit Short to Battery

Step 1: Disconnect the Battery

Before you begin any electrical work on your car, it’s important to disconnect the battery to prevent any electrical shocks or damage to your car’s electrical system. Locate the negative terminal on your car’s battery and use a wrench to loosen the nut. Once the nut is loose, remove the negative cable from the battery and set it aside.

Step 2: Locate the Accessory Delay Relay

The Accessory Delay Relay is typically located in the fuse box under the hood of your car. Consult your car’s owner’s manual or a repair manual to locate the fuse box and the Accessory Delay Relay.

Step 3: Remove the Accessory Delay Relay

Using a pair of pliers or a fuse puller, carefully remove the Accessory Delay Relay from the fuse box. Be sure to keep track of which relay is the Accessory Delay Relay, as there may be multiple relays in the fuse box.

Step 4: Inspect the Accessory Delay Relay

Once you’ve removed the Accessory Delay Relay, inspect it for any signs of damage or wear. Look for any frayed wires, loose connections, or signs of corrosion. If you notice any damage, you may need to replace the relay.

Step 5: Test the Accessory Delay Relay

Using a multimeter, test the Accessory Delay Relay to ensure that it’s functioning properly. Set the multimeter to the continuity setting and touch the probes to the appropriate pins on the relay. Consult your car’s owner’s manual or a repair manual for the correct pin configuration.

Step 6: Replace the Accessory Delay Relay

If the Accessory Delay Relay is damaged or not functioning properly, you’ll need to replace it. Purchase a replacement relay from your local auto parts store or online retailer. Install the new relay in the same location as the old relay and test the electrical system to ensure that the problem has been resolved.

Useful Tips

– Always wear protective gloves and eyewear when working on your car’s electrical system.
– Consult your car’s owner’s manual or a repair manual for specific instructions and diagrams.
– If you’re unsure about any aspect of the repair process, seek the assistance of a professional mechanic.

Conclusion

Fixing the B1304 Accessory Delay Relay Coil Circuit Short to Battery can be a daunting task, but with the right knowledge and tools, it’s a repair that you can do yourself. By following the step-by-step guide and useful tips provided in this article, you can address this issue and get your car’s electrical system back to working properly.

FAQs

1. Can I drive my car with the B1304 Accessory Delay Relay Coil Circuit Short to Battery?

It’s not recommended to drive your car with this issue, as it can cause further damage to your car’s electrical system. It’s best to address the issue as soon as possible.

2. How much does it cost to replace the Accessory Delay Relay?

The cost of a replacement Accessory Delay Relay can vary depending on the make and model of your car, as well as where you purchase the relay. On average, you can expect to pay between $20 and $50 for a replacement relay.

3. Can I prevent the B1304 Accessory Delay Relay Coil Circuit Short to Battery from happening again?

To prevent this issue from happening again, it’s important to regularly inspect your car’s electrical system for any signs of wear or damage. Additionally, be sure to follow the manufacturer’s recommended maintenance schedule for your car.