Engine-CodesGeneric – B2427

B2427 Code - Passenger Solar Radiation Sensor Circuit Short to Ground

Quick Answer

The B2427 diagnostic trouble code indicates that there is a short to ground in the passenger solar radiation sensor circuit. Common causes include Damaged wiring or connectors in the solar radiation sensor circuit, Faulty solar radiation sensor, Corrosion in the sensor circuit. 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
B2427 indicates Passenger Solar Radiation Sensor Circuit Short to Ground.
Common causes
Common causes include Damaged wiring or connectors in the solar radiation sensor circuit, Faulty solar radiation sensor, Corrosion in the sensor circuit.
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 06, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B2427 Description

The B2427 diagnostic trouble code indicates that there is a short to ground in the passenger solar radiation sensor circuit. The solar radiation sensor is responsible for detecting the intensity of sunlight entering the vehicle and adjusting the HVAC system accordingly to maintain a comfortable interior temperature. A short to ground in this circuit can disrupt the sensor's functionality, leading to inaccurate readings and potentially affecting the vehicle's climate control system. If not addressed, this issue can result in discomfort for passengers due to improper temperature regulation.

OBDII Code B2427 - Passenger Solar Radiation Sensor Circuit Short to Ground
B2427 Code - Passenger Solar Radiation Sensor Circuit Short to Ground

Common Causes of B2427

  1. Damaged wiring or connectors in the solar radiation sensor circuit
  2. Faulty solar radiation sensor
  3. Corrosion in the sensor circuit
  4. Environmental factors such as water intrusion causing a short to ground
  5. Electrical issues in the vehicle's wiring system

Symptoms of B2427

  1. Inaccurate temperature readings on the climate control system
  2. HVAC system constantly blowing hot or cold air
  3. Climate control system not responding to changes in sunlight intensity
  4. Erratic behavior of the HVAC system
  5. Dashboard warning light related to solar radiation sensor

How to Fix B2427

  1. Begin by diagnosing the root cause of the short to ground in the passenger solar radiation sensor circuit using a multimeter and wiring diagrams.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
  3. Test the solar radiation sensor for proper functionality and replace if defective.
  4. Clear the diagnostic trouble code from the vehicle's computer using a scan tool.
  5. Perform a test drive to ensure that the HVAC system is responding accurately to changes in sunlight intensity.

Cost to Fix B2427

The cost of repairing a passenger solar radiation sensor circuit short to ground can vary depending on the specific cause of the issue and the vehicle's make and model. On average, the repair costs for this type of issue can range from $100 to $300, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is recommended to obtain quotes from local shops for a more accurate estimate.

Need more information about the B2427 code?

Need more information on how to fix the B2427 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2427 code diagnosed by a professional: Find a repair shop in your area

Code B2427 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 B2427 Code

1. What are the common symptoms of OBDII code B2427?

- Common symptoms of OBDII code B2427 may include erratic readings from the passenger solar radiation sensor, inaccurate cabin temperature readings, and issues with the automatic climate control system.

2. What are the possible causes of OBDII code B2427?

- Possible causes of OBDII code B2427 include a short to ground in the passenger solar radiation sensor circuit, damaged wiring or connectors, or a faulty passenger solar radiation sensor.

3. How can I diagnose the cause of OBDII code B2427?

- To diagnose OBDII code B2427, you can start by visually inspecting the wiring and connectors for any visible damage. You can also use a multimeter to test for continuity and resistance in the circuit and check the sensor for proper operation.

4. Can I drive my vehicle with OBDII code B2427?

- It is generally safe to drive your vehicle with OBDII code B2427, but you may experience issues with the climate control system and inaccurate readings from the passenger solar radiation sensor.

5. How do I repair OBDII code B2427?

- To repair OBDII code B2427, you may need to repair any damaged wiring or connectors in the passenger solar radiation sensor circuit, replace the passenger solar radiation sensor if faulty, and clear the code with an OBDII scanner.

6. Can a DIY enthusiast fix OBDII code B2427?

- Depending on your experience and knowledge of automotive electrical systems, a DIY enthusiast may be able to diagnose and repair OBDII code B2427. However, if you are unsure, it is recommended to seek professional help.

7. Will OBDII code B2427 affect my vehicle's performance?

- OBDII code B2427 is unlikely to affect your vehicle's performance directly, but it may impact the accuracy of the climate control system and passenger comfort.

8. How much does it cost to fix OBDII code B2427?

- The cost to fix OBDII code B2427 can vary depending on the underlying cause. Repair costs may include labor charges and the price of any replacement parts needed, such as a new passenger solar radiation sensor.

9. Is OBDII code B2427 a common issue in certain vehicle models?

- OBDII code B2427 may be more common in vehicles equipped with a passenger solar radiation sensor, particularly in models with advanced climate control systems that rely on solar radiation data.

10. Can OBDII code B2427 be prevented in the future?

- While some causes of OBDII code B2427 may be related to wear and tear, regular maintenance and inspections of the climate control system can help prevent issues like a short to ground in the passenger solar radiation sensor circuit.

Discuss the causes and fixes for B2427 OBDII Code

Code B2427 comments

No comments found for this page.