Engine-CodesCadillac – P1873 Cadillac

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

Quick Answer

The P1873 Cadillac code indicates a problem with the Torque Converter Clutch Stator Temperature Switch Circuit being too low. Common causes include Faulty torque converter clutch stator temperature switch, Damaged wiring or connectors in the circuit, Low transmission fluid level. 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 Cadillac 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, Low transmission fluid level.
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 Cadillac Description

The P1873 Cadillac code indicates a problem with the Torque Converter Clutch Stator Temperature Switch Circuit being too low. The torque converter clutch stator temperature switch is a sensor that monitors the temperature of the stator in the torque converter. The stator is a key component in the torque converter that helps to improve the efficiency of the transmission by redirecting fluid flow. When the temperature switch circuit detects that the temperature is lower than expected, it triggers the P1873 code.

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

Common Causes of P1873 Cadillac

  1. Faulty torque converter clutch stator temperature switch
  2. Damaged wiring or connectors in the circuit
  3. Low transmission fluid level
  4. Malfunctioning transmission control module
  5. Electrical issues in the transmission system

Symptoms of P1873 Cadillac

  1. Harsh shifting between gears
  2. Transmission slipping
  3. Decreased fuel efficiency
  4. Illuminated check engine light
  5. Transmission overheating

How to Fix P1873 Cadillac

  1. Begin by performing a thorough inspection of the torque converter clutch stator temperature switch circuit to identify any visible damage or loose connections.
  2. Use a multimeter to test the resistance of the temperature switch and compare it to the manufacturer's specifications. Replace the switch if it is out of range.
  3. Check the transmission fluid level and top up if necessary. Inspect for any leaks that may be causing low fluid levels.
  4. Scan the vehicle's onboard computer for any related fault codes and address them accordingly.
  5. If the issue persists, consult a professional mechanic for further diagnosis and potential repairs.

Cost to Fix P1873 Cadillac

The typical repair costs for addressing the P1873 Cadillac code can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $400. It's important to note that additional diagnostic time may be required to pinpoint the exact source of the problem, which can impact the overall repair cost. As labor rates vary between auto repair shops, it's advisable to obtain quotes from multiple sources to get 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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