How to Fix B1375 Oil Change Lamp Circuit Open

Introduction

If you own a car, you know how important it is to keep up with regular maintenance. One of the most important aspects of car maintenance is changing the oil. However, sometimes you may encounter an issue with the oil change lamp circuit, specifically the B1375 code. In this article, we will discuss what the B1375 code means, how to diagnose the issue, and how to fix it.

What is the B1375 Code?

The B1375 code is a diagnostic trouble code (DTC) that indicates an issue with the oil change lamp circuit. This code is specific to General Motors (GM) vehicles and is triggered when the oil change lamp circuit is open. This means that the circuit is not complete, and the oil change lamp will not turn on when it should.

Diagnosing the Issue

Before you can fix the B1375 code, you need to diagnose the issue. Here are the steps to follow:

Step 1: Check the Oil Change Lamp

The first step is to check the oil change lamp. Turn on your car and look for the oil change lamp on the dashboard. If the lamp does not turn on, it could be a sign that there is an issue with the circuit.

Step 2: Check the Wiring

The next step is to check the wiring. Look for any visible damage to the wiring, such as frayed wires or loose connections. If you find any damage, you will need to repair or replace the wiring.

Step 3: Check the Oil Pressure Sensor

If the wiring looks fine, the next step is to check the oil pressure sensor. The oil pressure sensor is responsible for sending a signal to the oil change lamp when the oil pressure is low. Use a multimeter to test the sensor and make sure it is functioning properly.

Step 4: Check the Oil Pressure Switch

If the oil pressure sensor is functioning properly, the next step is to check the oil pressure switch. The oil pressure switch is responsible for turning on the oil change lamp when the oil pressure is low. Use a multimeter to test the switch and make sure it is functioning properly.

Fixing the B1375 Code

Once you have diagnosed the issue, you can move on to fixing the B1375 code. Here are the steps to follow:

Step 1: Repair or Replace the Wiring

If you found any damage to the wiring during the diagnosis, you will need to repair or replace the wiring. Make sure to use the appropriate tools and materials for the job.

Step 2: Replace the Oil Pressure Sensor

If the oil pressure sensor is not functioning properly, you will need to replace it. Make sure to use a high-quality replacement sensor that is compatible with your car.

Step 3: Replace the Oil Pressure Switch

If the oil pressure switch is not functioning properly, you will need to replace it. Make sure to use a high-quality replacement switch that is compatible with your car.

Conclusion

The B1375 code can be a frustrating issue to deal with, but with the right diagnosis and repair, you can fix the issue and get back on the road. Remember to always keep up with regular car maintenance to prevent issues like this from occurring in the first place.

FAQs

1. Can I still drive my car with the B1375 code?

Yes, you can still drive your car with the B1375 code, but it is not recommended. The oil change lamp is an important indicator of low oil pressure, and driving with low oil pressure can cause serious damage to your engine.

2. How often should I change my oil?

It is recommended to change your oil every 5,000 to 7,500 miles, depending on your car and driving habits. Check your car’s owner’s manual for specific recommendations.

3. Can I fix the B1375 code myself?

Yes, you can fix the B1375 code yourself if you have the appropriate tools and knowledge. However, if you are not comfortable working on your car, it is recommended to take it to a professional mechanic.