B1259
Solar Radiation Sensor Circuit Open
B1259 is an OBD-II diagnostic trouble code meaning: Solar Radiation Sensor Circuit Open. Common causes: broken or damaged wiring harness, solar sensor malfunction. Estimated repair cost: $22–89.
Symptoms
- Incorrect operation of climate control
- Lack of automatic temperature control in the cabin
- Check Engine Light Illuminates
Causes
- Broken or damaged wiring harness
- Solar sensor malfunction
- Corroded or damaged connectors
- Problems in the climate control control unit
How to Fix
- Check the integrity of the wiring harness to the sensor
- Inspect the sensor connectors for corrosion or damage.
- Check the solar radiation sensor with a multimeter
- Replace sensor or wiring harness if necessary
- Reset the error and check the system
FAQ
What does the B1259 code mean?
B1259 is an OBD-II diagnostic trouble code that indicates: Solar Radiation Sensor Circuit Open
What causes a B1259 error code?
The most common causes of B1259 include: Broken or damaged wiring harness; Solar sensor malfunction; Corroded or damaged connectors; Problems in the climate control control unit.
How do I fix a B1259 diagnostic trouble code?
To fix B1259: Check the integrity of the wiring harness to the sensor. Inspect the sensor connectors for corrosion or damage.. Check the solar radiation sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1259?
Do not drive — repair immediately
How much does it cost to fix B1259?
The estimated repair cost for B1259 is $22–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat