Engine-CodesSaturn – P0873 Saturn

P0873 Saturn Code - Transmission Fluid Pressure Sensor/Switch 'C' Circuit High

Quick Answer

The P0873 code for Saturn vehicles indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'C' Circuit being too high. Common causes include Faulty Transmission Fluid Pressure Sensor/Switch 'C', Wiring or connector issues, Malfunctioning transmission control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0873 Saturn indicates Transmission Fluid Pressure Sensor/Switch 'C' Circuit High.
Common causes
Common causes include Faulty Transmission Fluid Pressure Sensor/Switch 'C', Wiring or connector issues, Malfunctioning transmission control module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0873 Saturn Description

The P0873 code for Saturn vehicles indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'C' Circuit being too high. This sensor is responsible for monitoring the hydraulic pressure within the transmission system, ensuring that the gearbox operates correctly and shifts gears smoothly. When the sensor detects that the pressure is too high, it triggers the P0873 code, indicating an issue that needs to be addressed.

OBDII Code P0873 Saturn - Transmission Fluid Pressure Sensor/Switch 'C' Circuit High
P0873 Saturn Code - Transmission Fluid Pressure Sensor/Switch 'C' Circuit High

Common Causes of P0873 Saturn

  1. Faulty Transmission Fluid Pressure Sensor/Switch 'C'
  2. Wiring or connector issues
  3. Malfunctioning transmission control module
  4. Low transmission fluid levels
  5. Contaminated or deteriorated transmission fluid

Symptoms of P0873 Saturn

  1. Harsh or erratic shifting
  2. Transmission slipping
  3. Delayed engagement when shifting gears
  4. Transmission overheating
  5. Illumination of the Check Engine Light

How to Fix P0873 Saturn

  1. Begin by conducting a thorough inspection of the transmission fluid pressure sensor and its associated wiring and connectors.
  2. Test the sensor using a multimeter to check for proper resistance and voltage readings.
  3. If the sensor is faulty, replace it with a new, OEM-approved sensor.
  4. Check the transmission control module for any signs of damage or malfunction. If necessary, reprogram or replace the module.
  5. Refill the transmission fluid to the proper level and quality, ensuring that it is clean and free of contaminants.

Cost to Fix P0873 Saturn

The typical repair costs for addressing a P0873 code on a Saturn vehicle can range from $200 to $500, including parts and labor. However, the final cost may vary depending on the specific diagnosis time and labor rates at auto repair shops, which can differ based on factors such as location, vehicle make and model, and engine type. It is recommended to inquire about local rates to obtain a more accurate estimate for this repair.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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