P0873
Transmission Fluid Pressure Sensor/Switch C Circuit High
P0873 is an OBD-II diagnostic trouble code meaning: Transmission Fluid Pressure Sensor/Switch C Circuit High. Common causes: transmission fluid pressure sensor fault c, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Incorrect gear shifting
- Delays when shifting gears
- Transmission transition to emergency mode
- Check Engine light comes on
- Reduced transmission efficiency
Causes
- Transmission fluid pressure sensor fault C
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Transmission control module (TCM) malfunction
- Contaminated or low transmission fluid level
How to Fix
- Check the level and condition of the transmission fluid
- Conduct a visual inspection of the sensor circuit for damage.
- Check the resistance and voltage of the pressure sensor
- Check connectors and connections for corrosion or damage
- If necessary, replace the transmission fluid pressure sensor
Related codes
Error P0873 by Vehicle Brand
FAQ
What does the P0873 code mean?
P0873 is an OBD-II diagnostic trouble code that indicates: Transmission Fluid Pressure Sensor/Switch C Circuit High
What causes a P0873 error code?
The most common causes of P0873 include: Transmission fluid pressure sensor fault C; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Transmission control module (TCM) malfunction.
How do I fix a P0873 diagnostic trouble code?
To fix P0873: Check the level and condition of the transmission fluid. Conduct a visual inspection of the sensor circuit for damage.. Check the resistance and voltage of the pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0873?
Limited driving only, diagnose soon
How much does it cost to fix P0873?
The estimated repair cost for P0873 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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