B1259 GMC 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 GMC 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.
Code B1259 GMC Description
What are the Possible Causes of the DTC B1259 GMC?
- 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 GMC?
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 GMC 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.
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Frequently Asked Questions about B1259 GMC Code
1. What are the common symptoms of OBDII code B1259 GMC (Solar Radiation Sensor Circuit Open)?
- The common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, inaccurate temperature readings on the climate control system, and potential issues with automatic headlights.
2. What causes the Solar Radiation Sensor Circuit Open fault code B1259 in a GMC vehicle?
- The B1259 code is typically triggered by a malfunction in the solar radiation sensor circuit, which may be caused by a damaged sensor, wiring issues, or a faulty connection.
3. How can I diagnose the Solar Radiation Sensor Circuit Open issue in my GMC vehicle?
- To diagnose the B1259 code, you can use an OBDII scanner to retrieve the trouble codes and then inspect the solar radiation sensor, wiring harness, and connections for any visible damage or loose connections.
4. Can I repair the Solar Radiation Sensor Circuit Open problem myself?
- Depending on your level of automotive expertise, you may be able to repair the B1259 code yourself by replacing the faulty solar radiation sensor, repairing damaged wiring, or fixing any loose connections.
5. Is it safe to continue driving with the B1259 fault code in my GMC vehicle?
- While the B1259 code may not cause immediate safety concerns, it is recommended to address the issue promptly to ensure the accurate operation of the climate control system and automatic headlights.
6. How much does it typically cost to repair the Solar Radiation Sensor Circuit Open fault code in a GMC vehicle?
- The cost of repairing the B1259 code can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to consult a professional mechanic for an accurate cost estimate.
7. Can a faulty solar radiation sensor impact the overall performance of my GMC vehicle?
- While the B1259 code is related to the solar radiation sensor circuit, it may not directly affect the overall performance of the vehicle but can lead to issues with temperature control and automatic lighting features.
8. Will disconnecting the battery reset the B1259 fault code in my GMC vehicle?
- Disconnecting the battery may temporarily clear the fault code, but it is recommended to diagnose and repair the underlying issue causing the B1259 code to prevent it from reoccurring.
9. Are there any preventive measures to avoid the Solar Radiation Sensor Circuit Open problem in a GMC vehicle?
- To prevent the B1259 fault code, it is advisable to perform regular vehicle inspections, including checking the solar radiation sensor and its connections for any signs of wear or damage.
10. Can extreme weather conditions affect the solar radiation sensor and trigger the B1259 fault code?
- Yes, extreme weather conditions such as intense sunlight or moisture exposure can potentially damage the solar radiation sensor, leading to the B1259 fault code in a GMC vehicle.
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