How to Fix B1359 Ignition Run/Acc Circuit Failure

Introduction

If you’re experiencing issues with your car’s ignition system, specifically the B1359 code, you’re not alone. This code indicates an ignition run/acc circuit failure, which can cause your car to stall or not start at all. Fortunately, with a little bit of knowledge and some basic tools, you can fix this issue yourself. In this article, we’ll walk you through the steps to fix B1359 ignition run/acc circuit failure.

What is B1359 Ignition Run/Acc Circuit Failure?

B1359 is a diagnostic trouble code (DTC) that indicates an issue with the ignition run/acc circuit. This circuit is responsible for providing power to the ignition system when the key is turned to the “on” position. When this circuit fails, it can cause your car to stall or not start at all.

Step-by-Step Guide to Fix B1359 Ignition Run/Acc Circuit Failure

Step 1: Check the Battery

The first step in fixing B1359 ignition run/acc circuit failure is to check the battery. Make sure the battery is fully charged and in good condition. If the battery is weak or dead, it can cause issues with the ignition system.

Step 2: Check the Ignition Switch

The next step is to check the ignition switch. Use a multimeter to test the switch for continuity. If the switch is faulty, it will need to be replaced.

Step 3: Check the Ignition Relay

If the ignition switch is working properly, the next step is to check the ignition relay. Use a multimeter to test the relay for continuity. If the relay is faulty, it will need to be replaced.

Step 4: Check the Wiring

If the ignition switch and relay are both working properly, the next step is to check the wiring. Look for any damaged or corroded wires that may be causing the issue. Repair or replace any damaged wiring as needed.

Step 5: Check the Ignition Control Module

If the wiring is in good condition, the next step is to check the ignition control module. Use a multimeter to test the module for continuity. If the module is faulty, it will need to be replaced.

Useful Tips

– Always disconnect the battery before working on the ignition system.
– Use a multimeter to test components for continuity.
– Check the wiring harness for any signs of damage or corrosion.

Conclusion

Fixing B1359 ignition run/acc circuit failure may seem daunting, but with a little bit of knowledge and some basic tools, you can do it yourself. By following the steps outlined in this article, you can diagnose and fix the issue, getting your car back on the road in no time.

FAQs

1. Can I fix B1359 ignition run/acc circuit failure myself?

Yes, with a little bit of knowledge and some basic tools, you can fix B1359 ignition run/acc circuit failure yourself.

2. What causes B1359 ignition run/acc circuit failure?

B1359 ignition run/acc circuit failure can be caused by a weak or dead battery, a faulty ignition switch or relay, damaged wiring, or a faulty ignition control module.

3. How do I test components for continuity?

Use a multimeter to test components for continuity. Set the multimeter to the continuity setting and touch the probes to the component’s terminals. If the multimeter beeps, the component has continuity. If it doesn’t beep, the component is faulty.