Engine-CodesGeneric – B2426

B2426 Code - Passenger Solar Radiation Sensor Circuit Open

Quick Answer

The B2426 diagnostic trouble code (DTC) indicates a problem with the Passenger Solar Radiation Sensor Circuit being open. Common causes include Damaged wiring harness leading to the passenger solar radiation sensor, Disconnected wiring between the sensor and the control module, Faulty passenger solar radiation sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B2426 indicates Passenger Solar Radiation Sensor Circuit Open.
Common causes
Common causes include Damaged wiring harness leading to the passenger solar radiation sensor, Disconnected wiring between the sensor and the control module, Faulty passenger solar radiation sensor.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B2426 Description

The B2426 diagnostic trouble code (DTC) indicates a problem with the Passenger Solar Radiation Sensor Circuit being open. This sensor is responsible for detecting the intensity of solar radiation entering the vehicle through the passenger side windows. The sensor helps control features such as automatic climate control, sunroof operation, and adaptive lighting systems. When this circuit is open, it means that there is an interruption in the electrical connection between the sensor and the vehicle's control module.

OBDII Code B2426 - Passenger Solar Radiation Sensor Circuit Open
B2426 Code - Passenger Solar Radiation Sensor Circuit Open

Common Causes of B2426

  1. Damaged wiring harness leading to the passenger solar radiation sensor
  2. Disconnected wiring between the sensor and the control module
  3. Faulty passenger solar radiation sensor
  4. Malfunctioning control module that processes sensor data

Symptoms of B2426

  1. Inconsistent temperature control inside the vehicle
  2. Automatic climate control system not functioning properly
  3. Sunroof not operating automatically based on sunlight
  4. Adaptive lighting system not adjusting headlight intensity correctly

How to Fix B2426

  1. Start by inspecting the wiring harness leading to the passenger solar radiation sensor for any damage or disconnections.
  2. Test the sensor itself to determine if it is functioning correctly.
  3. Check the connection between the sensor and the vehicle's control module.
  4. If necessary, replace the passenger solar radiation sensor or repair the control module.
  5. Clear the DTC from the vehicle's memory using a diagnostic scan tool to reset the system.

Cost to Fix B2426

The typical repair costs for addressing the B2426 code can vary depending on the specific cause of the issue. In general, replacing a passenger solar radiation sensor or repairing a control module can range from $150 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can influence the final cost, with rates typically ranging between $80 and $150 per hour. Factors such as location, vehicle make and model, and engine type can also impact the overall repair expenses. For a more accurate estimate, it's recommended to consult with a qualified mechanic or local auto repair shop.

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Code B2426 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2426 Code

1. What are the common symptoms of OBDII code B2426?

- The common symptoms of OBDII code B2426 include issues with the passenger-side solar radiation sensor, such as inaccurate readings or a complete malfunction of the sensor.

2. What can cause the Passenger Solar Radiation Sensor Circuit Open code B2426?

- The B2426 code is typically triggered by an open circuit in the passenger solar radiation sensor, which could be due to wiring issues, a faulty sensor, or a poor connection.

3. How can I diagnose the cause of the B2426 code?

- To diagnose the B2426 code, you will need a scan tool to read the code and check the passenger-side solar radiation sensor for any visible damage or loose connections. You may also need to inspect the wiring for any issues.

4. Can I drive my vehicle with the B2426 code?

- It is generally safe to drive your vehicle with the B2426 code, but it is recommended to get it diagnosed and repaired as soon as possible to ensure the proper functioning of the passenger solar radiation sensor.

5. How can I repair the Passenger Solar Radiation Sensor Circuit Open code B2426?

- To repair the B2426 code, you may need to replace the passenger solar radiation sensor if it is faulty. Additionally, check and repair any damaged wiring or connections to ensure a proper circuit.

6. Will resetting the OBDII code B2426 make it go away permanently?

- Resetting the B2426 code may temporarily clear the error code, but if the underlying issue with the passenger solar radiation sensor circuit remains unresolved, the code is likely to return.

7. Can extreme weather conditions affect the passenger solar radiation sensor and trigger the B2426 code?

- Yes, extreme weather conditions such as extreme heat or moisture can potentially affect the passenger solar radiation sensor, leading to circuit issues and triggering the B2426 code.

8. Is it possible to bypass the passenger solar radiation sensor to avoid the B2426 code?

- Bypassing the passenger solar radiation sensor is not recommended as it is an essential component for accurate readings and proper functioning of the vehicle's systems. It is best to address the root cause of the B2426 code.

9. How much does it typically cost to repair the B2426 code?

- The cost of repairing the B2426 code can vary depending on the extent of the issue, the need for sensor replacement, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

10. Can the B2426 code affect other vehicle systems or components?

- While the B2426 code specifically relates to the passenger solar radiation sensor circuit, if left unresolved, it could potentially impact other systems that rely on the sensor's input for proper operation.

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