P0871 Fault Code
P0871 OBD-II Trouble Code Short Description
Transmission Fluid Pressure Sensor/Switch C Circuit Range/Performance
What does trouble code P0871 mean?
The P0871 fault code indicates an issue with the Transmission Fluid Pressure Sensor/Switch C circuit, which is responsible for monitoring the fluid pressure within the transmission system. When the sensor detects a pressure that is out of range or not performing as expected, this code is triggered. Understanding this code is essential for diagnosing potential issues affecting transmission performance.
Symptoms
What are the symptoms of the P0871 code?
Symptoms associated with P0871 may include:
- Erratic or harsh shifting of the transmission
- Decreased fuel efficiency
- Transmission slipping or being stuck in a particular gear
- Illuminated check engine light
- Unusual noises from the transmission
Causes
What causes the P0871 code?
Common causes of the P0871 fault code include:
- A faulty Transmission Fluid Pressure Sensor
- Damaged wiring or connectors in the sensor circuit
- Low transmission fluid level
- Contaminated transmission fluid
- Issues within the transmission itself
Possible Solutions
How to fix P0871?
To resolve the P0871 fault code, consider the following fixes:
- Inspect and repair any damaged wiring or connections in the sensor circuit
- Replace the faulty Transmission Fluid Pressure Sensor
- Ensure proper transmission fluid level and quality, topping off or replacing as necessary
- Check the transmission for internal issues, such as wear or damage, and repair as needed