How to Fix B1355 Ignition Run Circuit Failure

Introduction

If you’re experiencing issues with your car’s ignition system, specifically the B1355 Ignition Run Circuit Failure code, you’re not alone. This code is a common problem that many car owners face, and it can be frustrating to deal with. However, with the right knowledge and tools, you can fix this issue yourself and save money on costly repairs. In this article, we’ll provide you with step-by-step instructions on how to fix the B1355 Ignition Run Circuit Failure code.

What is B1355 Ignition Run Circuit Failure?

Before we dive into the solution, let’s first understand what the B1355 Ignition Run Circuit Failure code means. This code indicates that there is a problem with the ignition system’s run circuit. The run circuit is responsible for providing power to the ignition system when the key is turned to the “on” position. When this circuit fails, the engine may not start or may stall while driving.

Step-by-Step Guide to Fix B1355 Ignition Run Circuit Failure

Now that we know what the B1355 code means, let’s get into the solution. Here’s a step-by-step guide on how to fix the B1355 Ignition Run Circuit Failure code:

Step 1: Check the Battery

The first thing you should do is check the battery. A weak or dead battery can cause the B1355 code to appear. Use a voltmeter to check the battery’s voltage. If the voltage is low, charge the battery or replace it if necessary.

Step 2: Check the Ignition Switch

If the battery is not the issue, the next thing to check is the ignition switch. The ignition switch is responsible for sending power to the run circuit. Use a multimeter to check the voltage at the ignition switch. If there is no voltage, the ignition switch may be faulty and needs to be replaced.

Step 3: Check the Wiring

If the ignition switch is not the issue, the next thing to check is the wiring. Check the wiring for any damage or loose connections. Use a wiring diagram to trace the wiring and ensure that all connections are secure.

Step 4: Check the Ignition Control Module

If the wiring is not the issue, the next thing to check is the ignition control module. The ignition control module is responsible for controlling the ignition system. Use a multimeter to check the voltage at the ignition control module. If there is no voltage, the ignition control module may be faulty and needs to be replaced.

Step 5: Check the PCM

If all of the above steps have been completed and the B1355 code is still present, the last thing to check is the PCM (powertrain control module). The PCM is responsible for controlling the engine and transmission. Use a scan tool to check for any PCM codes. If there are no other codes present, the PCM may be faulty and needs to be replaced.

Conclusion

Fixing the B1355 Ignition Run Circuit Failure code may seem daunting, but with the right knowledge and tools, it can be done. By following the step-by-step guide provided in this article, you can save money on costly repairs and get your car back on the road in no time.

FAQs

1. Can I drive my car with the B1355 code?

It is not recommended to drive your car with the B1355 code present. This code indicates a problem with the ignition system’s run circuit, which can cause the engine to stall while driving.

2. How much does it cost to fix the B1355 code?

The cost to fix the B1355 code can vary depending on the cause of the issue. If it’s a simple fix like a dead battery, the cost will be minimal. However, if it’s a more complex issue like a faulty PCM, the cost can be more expensive.

3. Can I fix the B1355 code myself?

Yes, you can fix the B1355 code yourself if you have the right knowledge and tools. By following the step-by-step guide provided in this article, you can fix the issue and save money on costly repairs.