AutoCodes – Generic – B1261

B1261 Code - Solar Radiation Sensor Circuit Short To Ground

Quick Answer

Under normal operation, the solar radiation sensor receives a ground through the circuit. Common causes include Faulty Solar Radiation Sensor, Solar Radiation Sensor harness is open or shorted, Solar Radiation Sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
B1261 indicates Solar Radiation Sensor Circuit Short To Ground.
Common causes
Common causes include Faulty Solar Radiation Sensor, Solar Radiation Sensor harness is open or shorted, Solar Radiation Sensor circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 46,102
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Nov 29, 2024
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Code B1261 Description

Under normal operation, the solar radiation sensor receives a ground through the circuit. A 5-volt reference voltage is supplied to the solar radiation sensor from the Electronic Automatic Temperature Control (EATC) Module through. The EATC Module monitors the Solar Radiation Sensor. The EATC Module sets the OBDII code when the Solar Radiation Sensor is not to factory specifications.
OBDII Code B1261 - Solar Radiation Sensor Circuit Short To Ground - AutoCodes.com
B1261 Code - Solar Radiation Sensor Circuit Short To Ground

What are the Possible Causes of the DTC B1261?

  • Faulty Solar Radiation Sensor
  • Solar Radiation Sensor harness is open or shorted
  • Solar Radiation Sensor circuit poor electrical connection
  • Faulty Electronic Automatic Temperature Control (EATC) Module

How to Fix the DTC B1261?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1261 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1261 code?

Need more information on how to fix the B1261 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1261 code diagnosed by a professional: Find a repair shop in your area

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 B1261 Code

1. What are common symptoms of OBDII code B1261 (Solar Radiation Sensor Circuit Short To Ground)?

The common symptoms include inaccurate readings from the solar radiation sensor, automatic climate control malfunctions, and dashboard warning lights.

2. What are the possible causes of OBDII code B1261?

Possible causes include damaged wiring in the solar radiation sensor circuit, a faulty solar radiation sensor, or a short to ground in the circuit.

3. How can I diagnose the issue related to OBDII code B1261?

Diagnose the issue by visually inspecting the sensor and wiring, testing the sensor's resistance, and using a multimeter to check for shorts to ground in the circuit.

4. What are the repair options for resolving OBDII code B1261?

Repair options include repairing or replacing damaged wiring, replacing the solar radiation sensor, and ensuring all connections are secure and free of corrosion.

5. Can I continue driving with OBDII code B1261 illuminated?

It is generally not recommended to continue driving with the code illuminated, as it may lead to further issues with the automatic climate control system.

6. How do I reset OBDII code B1261 after making repairs?

After making the necessary repairs, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

7. Are there any preventive measures to avoid OBDII code B1261 in the future?

To prevent OBDII code B1261, regularly inspect the solar radiation sensor and its wiring for any signs of damage or wear, and address any issues promptly.

8. Can extreme weather conditions affect the solar radiation sensor circuit?

Yes, extreme weather conditions such as intense sunlight or heavy rain can potentially impact the performance of the solar radiation sensor circuit.

9. Is it possible to bypass the solar radiation sensor circuit to clear OBDII code B1261?

Bypassing the solar radiation sensor circuit is not recommended, as it can lead to inaccurate readings and potential issues with the vehicle's automatic climate control system.

10. How long does it typically take to repair OBDII code B1261?

The repair time for OBDII code B1261 can vary depending on the extent of the damage and the availability of replacement parts, but it is generally a relatively quick repair for a qualified technician.

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