Engine-CodesChevrolet – P1873 Chevrolet

P1873 Chevrolet Code - Torque Converter Clutch Stator Temperature Switch Circuit Low

Quick Answer

The P1873 Chevrolet code indicates a problem with the Torque Converter Clutch Stator Temperature Switch Circuit being lower than expected. Common causes include Faulty Torque Converter Clutch Stator Temperature Switch, Damaged wiring or connectors in the circuit, Defective TCC solenoid. 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
P1873 Chevrolet indicates Torque Converter Clutch Stator Temperature Switch Circuit Low.
Common causes
Common causes include Faulty Torque Converter Clutch Stator Temperature Switch, Damaged wiring or connectors in the circuit, Defective TCC solenoid.
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 09, 2024
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Code P1873 Chevrolet Description

The P1873 Chevrolet code indicates a problem with the Torque Converter Clutch Stator Temperature Switch Circuit being lower than expected. The Torque Converter Clutch (TCC) is a vital component in automatic transmissions, as it helps improve fuel efficiency and reduces engine load. The stator temperature switch is responsible for monitoring the temperature of the TCC stator, which helps regulate the engagement of the TCC. When the circuit is reading a lower temperature than it should, it can lead to various issues in the transmission system.

OBDII Code P1873 Chevrolet - Torque Converter Clutch Stator Temperature Switch Circuit Low
P1873 Chevrolet Code - Torque Converter Clutch Stator Temperature Switch Circuit Low

Common Causes of P1873 Chevrolet

  1. Faulty Torque Converter Clutch Stator Temperature Switch
  2. Damaged wiring or connectors in the circuit
  3. Defective TCC solenoid
  4. Low transmission fluid levels
  5. Overheating of the transmission system

Symptoms of P1873 Chevrolet

  1. Poor fuel economy
  2. Slipping or delayed engagement of the transmission
  3. Harsh shifting or jerking while driving
  4. Transmission overheating
  5. Illumination of the Check Engine Light

How to Fix P1873 Chevrolet

  1. Begin by diagnosing the exact cause of the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the problem area.
  2. Inspect the Torque Converter Clutch Stator Temperature Switch and test its functionality using a multimeter to determine if it is faulty.
  3. Check the wiring and connectors in the circuit for any damage or corrosion. Repair or replace any damaged components as needed.
  4. Inspect the TCC solenoid for proper operation and replace it if necessary.
  5. Ensure that the transmission fluid levels are adequate and top up or replace the fluid if it is low or degraded.

Cost to Fix P1873 Chevrolet

The typical repair costs for addressing a P1873 Chevrolet code can range from $200 to $500, depending on the exact cause of the issue and the labor rates at the auto repair shop. This estimate includes the cost of parts, such as a new Torque Converter Clutch Stator Temperature Switch or TCC solenoid, as well as labor costs for diagnosis and repair. It is important to note that prices can vary based on the location, vehicle make and model, and the specific repairs needed. It is advisable to obtain quotes from local auto repair shops for a more accurate estimate.

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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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