How to Fix P1355 Fuel Level Sensor B Intermittent/Bypass Line Monitor

Introduction

If you’re experiencing the P1355 error code on your vehicle, it means that there is an issue with the fuel level sensor B intermittent/bypass line monitor. This can be a frustrating problem to deal with, but fortunately, it’s not too difficult to fix. In this article, we’ll provide you with step-by-step instructions on how to fix the P1355 error code and get your vehicle back on the road.

Step 1: Check the Fuel Level Sensor

The first step in fixing the P1355 error code is to check the fuel level sensor. This sensor is responsible for measuring the amount of fuel in your vehicle’s tank and sending that information to the engine control module (ECM). If the sensor is faulty, it can cause the P1355 error code to appear.

To check the fuel level sensor, you’ll need to locate it on your vehicle. The sensor is typically located on the fuel pump module, which is located inside the fuel tank. Once you’ve located the sensor, use a multimeter to test its resistance. The resistance should be between 40 and 250 ohms. If the resistance is outside of this range, the sensor is faulty and will need to be replaced.

Step 2: Check the Wiring

If the fuel level sensor is working properly, the next step is to check the wiring. The wiring for the fuel level sensor runs from the sensor to the ECM. If there is a problem with the wiring, it can cause the P1355 error code to appear.

To check the wiring, start by inspecting it for any visible damage or wear. If you notice any damage, you’ll need to repair or replace the wiring. If the wiring looks fine, use a multimeter to test the continuity of the wires. Make sure that there is continuity between the fuel level sensor and the ECM. If there is no continuity, you’ll need to repair or replace the wiring.

Step 3: Check the ECM

If the fuel level sensor and wiring are both working properly, the next step is to check the ECM. The ECM is responsible for receiving the signal from the fuel level sensor and using that information to control the fuel gauge on your dashboard. If the ECM is faulty, it can cause the P1355 error code to appear.

To check the ECM, you’ll need to use a diagnostic tool. Connect the diagnostic tool to your vehicle’s OBD-II port and follow the instructions to read the error codes. If the diagnostic tool shows that there is a problem with the ECM, you’ll need to replace it.

Step 4: Replace the Fuel Level Sensor

If you’ve determined that the fuel level sensor is faulty, you’ll need to replace it. To do this, you’ll need to remove the fuel pump module from your vehicle’s fuel tank. This can be a difficult and time-consuming process, so it’s best to consult your vehicle’s owner’s manual or a professional mechanic for guidance.

Once you’ve removed the fuel pump module, you can replace the fuel level sensor. Make sure to install the new sensor correctly and reassemble the fuel pump module.

Conclusion

Fixing the P1355 error code can be a challenging task, but with the right tools and knowledge, it’s definitely doable. By following the steps outlined in this article, you should be able to diagnose and fix the problem with your fuel level sensor B intermittent/bypass line monitor. If you’re not comfortable performing these repairs yourself, it’s always best to consult a professional mechanic.

FAQs

1. What causes the P1355 error code?

The P1355 error code is caused by a problem with the fuel level sensor B intermittent/bypass line monitor. This can be due to a faulty sensor, damaged wiring, or a faulty ECM.

2. Can I drive my vehicle with the P1355 error code?

It’s not recommended to drive your vehicle with the P1355 error code. This code indicates a problem with the fuel level sensor, which can cause inaccurate readings and potentially lead to other issues.

3. How much does it cost to fix the P1355 error code?

The cost to fix the P1355 error code will depend on the cause of the problem. If it’s a simple fix like replacing a faulty sensor, it may only cost a few hundred dollars. However, if the problem is more complex and requires replacing the ECM, it could cost upwards of $1,000.