Understanding Subaru OBD-II Trouble Codes P0847
What are OBD-II Trouble Codes?
OBD-II (On-Board Diagnostic) trouble codes are diagnostic codes that are generated by a vehicle’s onboard computer system. These codes help identify specific issues or malfunctions in the vehicle’s various systems, such as the engine, transmission, or emissions.
What is Code P0847?
Code P0847 is a specific OBD-II trouble code that is associated with Subaru vehicles. It indicates a problem with the transmission fluid pressure sensor/switch ‘B’ circuit. This sensor is responsible for monitoring the fluid pressure in the transmission and sending the information to the vehicle’s computer system.
Common Symptoms of Code P0847
When a Subaru vehicle generates code P0847, there are several common symptoms that may indicate the presence of this issue. These symptoms can include:
- Difficulty shifting gears
- Slipping or jerking transmission
- Transmission overheating
- Illuminated check engine light
Possible Causes of Code P0847
There are several potential causes for code P0847 in Subaru vehicles. These can include:
- Faulty transmission fluid pressure sensor/switch
- Low transmission fluid level
- Dirty or contaminated transmission fluid
- Wiring or connector issues
How to Diagnose and Fix Code P0847
Diagnosing and fixing code P0847 requires a thorough inspection of the transmission fluid pressure sensor/switch ‘B’ circuit. This may involve checking the wiring and connectors for any signs of damage or corrosion, as well as testing the sensor itself. Additionally, checking the transmission fluid level and condition is important, as low or dirty fluid can also contribute to this issue.
If you are not familiar with automotive diagnostics and repairs, it is recommended to consult a professional mechanic or Subaru dealership for assistance with diagnosing and fixing code P0847.
In Conclusion
Understanding OBD-II trouble codes, such as code P0847, can help Subaru owners identify and address potential issues with their vehicles. By being aware of the common symptoms and possible causes, owners can take the necessary steps to diagnose and fix the problem, ensuring the optimal performance and longevity of their Subaru vehicles.
