B1362 Ignition Run/Acc Circuit Short To Ground

How to Fix B1362 Ignition Run/Acc Circuit Short to Ground


If you’re experiencing issues with your car’s ignition system, specifically the B1362 code, you’re not alone. This code indicates a short circuit in the ignition run/acc circuit, which can cause a variety of problems, including difficulty starting the car, stalling, and even complete engine failure. Fortunately, with a little know-how and some basic tools, you can fix this issue yourself and save a trip to the mechanic.

Step 1: Diagnose the Problem

Before you can fix the B1362 code, you need to determine what’s causing it. Start by using an OBD-II scanner to read the code and any other related codes. This will give you a better idea of what’s going on and help you narrow down the problem.

Next, check the ignition switch and 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’re not comfortable doing this yourself, take your car to a mechanic for a professional diagnosis.

Step 2: Replace the Ignition Switch

If the problem is with the ignition switch, you’ll need to replace it. Start by disconnecting the battery to prevent any electrical shocks. Then, remove the steering column cover and locate the ignition switch.

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Disconnect the wiring harness and remove the mounting screws to remove the old switch. Install the new switch in the reverse order, making sure to connect the wiring harness securely.

Step 3: Repair the Wiring

If the problem is with the wiring, you’ll need to repair or replace it. Start by identifying the damaged wires and cutting them back to expose fresh wire.

Next, strip the ends of the wires and twist them together. Cover the connection with electrical tape or use a wire nut to secure the connection.

If the wiring is severely damaged, you may need to replace the entire harness. This can be a more complicated process, so it’s best to consult a mechanic or a repair manual for your specific make and model.

Step 4: Test the System

Once you’ve replaced the ignition switch or repaired the wiring, it’s time to test the system. Reconnect the battery and use an OBD-II scanner to clear the code.

Start the car and make sure it runs smoothly. Check for any warning lights or other issues. If everything looks good, take the car for a test drive to ensure that the problem has been resolved.


Fixing the B1362 code may seem daunting, but with a little patience and some basic tools, you can do it yourself. By diagnosing the problem, replacing the ignition switch or repairing the wiring, and testing the system, you can get your car back on the road in no time.


1. Can I drive my car with the B1362 code?

It’s not recommended to drive your car with the B1362 code, as it can cause a variety of issues, including stalling and engine failure. It’s best to address the problem as soon as possible to avoid further damage.

2. How much does it cost to fix the B1362 code?

The cost of fixing the B1362 code can vary depending on the cause of the problem and the make and model of your car. If you’re comfortable doing the repairs yourself, you can save money on labor costs. However, if you’re not confident in your abilities, it’s best to take your car to a mechanic for a professional diagnosis and repair.

3. How can I prevent the B1362 code from happening again?

To prevent the B1362 code from happening again, make sure to keep your car’s ignition system well-maintained. Check the wiring and connections regularly for signs of wear or damage, and replace any damaged parts as soon as possible. Additionally, avoid using aftermarket parts that may not be compatible with your car’s electrical system.