How to Fix B1255 Air Temperature External Sensor Circuit Open

Introduction

If you’re experiencing the B1255 Air Temperature External Sensor Circuit Open error code on your car, don’t panic. This is a common issue that can be easily fixed with a few simple steps. In this article, we’ll guide you through the process of fixing this error code and getting your car back on the road.

What is the B1255 Air Temperature External Sensor Circuit Open Error Code?

The B1255 error code is related to the air temperature sensor in your car. This sensor is responsible for measuring the temperature of the air that enters your car’s engine. When the sensor detects an issue with the circuit that it’s connected to, it triggers the B1255 error code.

Step-by-Step Guide to Fixing the B1255 Error Code

Step 1: Locate the Air Temperature Sensor

The first step in fixing the B1255 error code is to locate the air temperature sensor in your car. This sensor is usually located near the air intake system, which is typically located near the front of the engine compartment.

Step 2: Check the Wiring Connections

Once you’ve located the air temperature sensor, the next step is to check the wiring connections. Make sure that all of the wires are properly connected and that there are no loose or damaged wires.

Step 3: Check the Sensor for Damage

If the wiring connections are all good, the next step is to check the sensor itself for damage. Look for any signs of physical damage, such as cracks or breaks in the sensor. If the sensor is damaged, it will need to be replaced.

Step 4: Test the Sensor

If the wiring connections and sensor are both in good condition, the next step is to test the sensor. You can do this by using a multimeter to check the resistance of the sensor. If the resistance is outside of the normal range, the sensor will need to be replaced.

Step 5: Replace the Sensor

If the sensor is damaged or the resistance is outside of the normal range, the final step is to replace the sensor. This is a relatively simple process that can be done with basic tools. Simply remove the old sensor and install the new one in its place.

Conclusion

Fixing the B1255 Air Temperature External Sensor Circuit Open error code is a simple process that can be done with a few basic tools. By following the steps outlined in this article, you can quickly and easily get your car back on the road.

FAQs

1. Can I drive my car with the B1255 error code?

It’s not recommended to drive your car with the B1255 error code. This error code can cause issues with your car’s performance and may lead to further damage if left untreated.

2. How much does it cost to replace the air temperature sensor?

The cost of replacing the air temperature sensor can vary depending on the make and model of your car. On average, you can expect to pay between $50 and $200 for the sensor and installation.

3. Can I fix the B1255 error code myself?

Yes, you can fix the B1255 error code yourself with a few basic tools. However, if you’re not comfortable working on your car’s electrical system, it’s recommended to take your car to a professional mechanic.