B1259 Ford Code - Solar Radiation Sensor Circuit Open
Quick Answer
Sunload Sensor (Solar Radiation Sensor) contains a photovoltaic (sunlight sensitive) diode, which measures sunlight entering vehicle and inputs signal to the Remote Climate Control (RCC) module. Common causes include Faulty Sunload Sensor (Solar Radiation Sensor), Sunload Sensor harness is open or shorted, Sunload 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 Ford indicates Solar Radiation Sensor Circuit Open.
- Common causes
- Common causes include Faulty Sunload Sensor (Solar Radiation Sensor), Sunload Sensor harness is open or shorted, Sunload 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.
Code B1259 Ford Description
What are the Possible Causes of the DTC B1259 Ford?
- Faulty Sunload Sensor (Solar Radiation Sensor)
- Sunload Sensor harness is open or shorted
- Sunload Sensor circuit poor electrical connection
How to Fix the DTC B1259 Ford?
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 Ford 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 Ford code?
Need more information on how to fix the B1259 Ford code? Get Access to Factory Service Manuals
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Frequently Asked Questions about B1259 Ford Code
1. What are the common symptoms of OBDII code B1259 Ford (Solar Radiation Sensor Circuit Open)?
The common symptoms include inaccurate temperature readings on the climate control system, erratic behavior of the automatic headlights, and potential illumination of the "Check Engine" light.
2. What can cause the Solar Radiation Sensor Circuit Open code (B1259) in a Ford vehicle?
The code B1259 is typically triggered by a faulty solar radiation sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning climate control module.
3. How can I diagnose the Solar Radiation Sensor Circuit Open issue in my Ford vehicle?
Diagnosing the B1259 code involves visually inspecting the sensor and its wiring for any visible damage, testing the sensor's resistance with a multimeter, and checking the sensor's voltage output using a scan tool.
4. Can I repair the Solar Radiation Sensor Circuit Open problem in my Ford on my own?
Repairing the B1259 code usually involves replacing the solar radiation sensor if it is found to be faulty, repairing any damaged wiring or connectors, and clearing the trouble codes with a scan tool. It is recommended to have some level of automotive repair experience.
5. Are there any DIY tips to troubleshoot the Solar Radiation Sensor Circuit Open code in a Ford vehicle?
You can start by checking the sensor's wiring harness for any loose or damaged connections, ensuring the sensor is free from any obstructions that may affect its readings, and performing a reset by disconnecting the battery for a few minutes.
6. What is the purpose of the solar radiation sensor in a Ford vehicle?
The solar radiation sensor measures the intensity of sunlight and provides this information to the climate control system to adjust temperature settings and control features like automatic headlights for optimal comfort and visibility.
7. Can the Solar Radiation Sensor Circuit Open issue affect the overall performance of my Ford vehicle?
While the B1259 code is more related to climate control and lighting functions, a faulty solar radiation sensor could potentially impact the accuracy of temperature control and the functionality of automatic lighting features in your vehicle.
8. How urgent is it to address the Solar Radiation Sensor Circuit Open code in my Ford?
While the B1259 code may not directly affect the drivability of your vehicle, addressing it promptly is recommended to ensure proper functioning of climate control and lighting systems, and to prevent potential issues down the road.
9. Are there any recalls or technical service bulletins related to the Solar Radiation Sensor Circuit Open problem in Ford vehicles?
It is advisable to check with your local Ford dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins addressing the B1259 code in your specific Ford model.
10. Can extreme weather conditions impact the functionality of the solar radiation sensor in my Ford vehicle?
Yes, extreme weather conditions such as intense sunlight, heavy rain, or extreme temperatures can potentially affect the performance of the solar radiation sensor and may contribute to triggering the B1259 trouble code.
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