B1261-FF, Sun Load Sensor Short Circuit To Ground; What To Do?

Yes, B1261-FF is a diagnostic trouble code (DTC) that indicates a short circuit to ground in the sun load sensor circuit. This code is typically set in vehicles with a sun load sensor, which is a device that measures the amount of solar radiation that is incident on the vehicle. The sun load sensor sends a signal to the vehicle’s computer, which then adjusts the climate control system accordingly.

If the sun load sensor is shorted to ground, the vehicle’s computer will not receive an accurate signal from the sensor. This can lead to the climate control system not working properly. The symptoms of a B1261-FF DTC can vary depending on the make and model of the vehicle, but may include:

• Air conditioning system malfunction
• The headlights not turning on sutomatically
• The mirrors not dimming automatically

If you experience any of these symptoms, it is important to have the sun load sensor checked by a qualified mechanic. They will be able to diagnose the problem and recommend the best course of action.

A faulty sun load sensor is the most common cause of a B1261-FF DTC. However, the code can also be caused by a wiring problem or a fault in the vehicle’s computer. The mechanic will use a diagnostic tool to scan the vehicle’s computer and determine the cause of the code.

If the sun load sensor is faulty, it will need to be replaced. If the wiring is faulty, it will need to be repaired. If the vehicle’s computer is faulty, it may need to be replaced.

The cost of repairing a B1261-FF DTC can vary depending on the make and model of the vehicle, but it typically ranges from $100 to $500.

Here are some tips to help prevent a B1261-FF DTC:

• Keep the sun load sensor clean and free of dirt and debris.
• Avoid driving in areas with high levels of dust or pollen.
• Have the sun load sensor checked regularly by a qualified mechanic.