AutoCodes – Saturn – B1259 Saturn

B1259 Saturn Code - Solar Radiation Sensor Circuit Open

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
B1259 Saturn indicates Solar Radiation Sensor Circuit Open.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,124
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 29, 2024
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B1259 Saturn 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 B1259 Saturn - Solar Radiation Sensor Circuit Open - AutoCodes.com
B1259 Saturn Code - Solar Radiation Sensor Circuit Open

What are the Possible Causes of the DTC B1259 Saturn?

  • 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 B1259 Saturn?

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 B1259 Saturn 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 B1259 Saturn code?

Need more information on how to fix the B1259 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1259 Saturn code diagnosed by a professional: Find a repair shop in your area

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 B1259 Saturn Code

1. What are the common symptoms of OBDII code B1259 Saturn (Solar Radiation Sensor Circuit Open)?

The common symptoms include inaccurate ambient temperature readings on the vehicle's display, issues with the automatic climate control system, and potential illumination of the Check Engine Light.

2. What can cause the Solar Radiation Sensor Circuit Open code B1259 in a Saturn vehicle?

The code B1259 can be triggered by a malfunction in the solar radiation sensor circuit, a faulty solar radiation sensor, damaged wiring or connectors related to the sensor, or a problem with the sensor's power supply.

3. How can I diagnose the cause of the Solar Radiation Sensor Circuit Open code in my Saturn?

To diagnose the issue, you can visually inspect the sensor and its wiring for any visible damage, test the sensor's resistance using a multimeter, check the sensor's power supply, and scan the vehicle's computer for specific fault codes.

4. Can I repair the Solar Radiation Sensor Circuit Open issue in my Saturn at home?

Repairing the B1259 code may involve replacing the solar radiation sensor, repairing damaged wiring or connectors, or addressing any power supply issues. If you have the necessary tools and expertise, you may be able to perform these repairs at home.

5. Is it safe to drive my Saturn with the B1259 OBDII code (Solar Radiation Sensor Circuit Open) present?

While driving with the B1259 code may not cause immediate safety concerns, it is recommended to address the issue promptly to ensure proper functioning of the ambient temperature display and climate control system in your vehicle.

6. Can a faulty solar radiation sensor affect other systems in my Saturn?

Yes, a faulty solar radiation sensor can impact the accuracy of ambient temperature readings, affect the operation of the automatic climate control system, and potentially cause related warning lights to illuminate on the dashboard.

7. How much does it typically cost to repair the Solar Radiation Sensor Circuit Open issue in a Saturn?

The cost of repairing the B1259 code can vary depending on the specific cause of the problem, labor rates in your area, and whether you choose to address the issue yourself or take your vehicle to a professional mechanic. Costs may range from a few hundred to over a thousand dollars.

8. Can extreme weather conditions or exposure to sunlight cause the Solar Radiation Sensor Circuit Open code in a Saturn?

Extreme weather conditions or prolonged exposure to direct sunlight could potentially damage the solar radiation sensor or its wiring, leading to the triggering of the B1259 fault code in your Saturn.

9. Will resetting the Check Engine Light clear the B1259 code in my Saturn?

Resetting the Check Engine Light may temporarily clear the code, but if the underlying issue causing the B1259 fault is not addressed, the code is likely to reappear. It is recommended to diagnose and repair the root cause of the problem.

10. How important is the solar radiation sensor for the overall operation of my Saturn's climate control system?

The solar radiation sensor plays a crucial role in providing accurate ambient temperature readings to the climate control system, helping regulate the interior temperature of the vehicle. Addressing issues with the sensor is important for optimal performance of the climate control system.

Discuss the causes and fixes for B1259 Saturn OBDII Code

Code B1259 Saturn comments

No comments found for this page.

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