Engine-CodesGeneric – P0C1B

P0C1B Code - Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High

Quick Answer

The diagnostic trouble code P0C1B indicates that the Auxiliary Transmission Fluid Pump Control Module Internal Temperature is Too High. Common causes include Faulty auxiliary transmission fluid pump control module, Wiring or connection issues within the control module, Malfunctioning temperature sensors. 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
P0C1B indicates Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High.
Common causes
Common causes include Faulty auxiliary transmission fluid pump control module, Wiring or connection issues within the control module, Malfunctioning temperature sensors.
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 17, 2024
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Code P0C1B Description

The diagnostic trouble code P0C1B indicates that the Auxiliary Transmission Fluid Pump Control Module Internal Temperature is Too High. This code typically points to an issue with the auxiliary transmission fluid pump control module, which is responsible for regulating the temperature of the transmission fluid. The transmission fluid pump helps to circulate the fluid throughout the transmission system, ensuring that all components are properly lubricated and cooled.

OBDII Code P0C1B - Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High
P0C1B Code - Auxiliary Transmission Fluid Pump Control Module Internal Temperature Too High

Common Causes of P0C1B

  1. Faulty auxiliary transmission fluid pump control module.
  2. Wiring or connection issues within the control module.
  3. Malfunctioning temperature sensors.
  4. Overheating of the transmission fluid due to lack of proper cooling.
  5. High ambient temperatures or driving conditions causing increased heat within the transmission system.

Symptoms of P0C1B

  1. Check engine light illuminated on the dashboard.
  2. Rough shifting or hesitation when changing gears.
  3. Transmission slipping or jerking during acceleration.
  4. Overheating of the transmission fluid.
  5. Reduced fuel efficiency.

How to Fix P0C1B

  1. Perform a diagnostic scan to retrieve the trouble code and identify the specific issue.
  2. Inspect the auxiliary transmission fluid pump control module for any signs of damage or malfunction.
  3. Check the wiring and connections for any loose or damaged components.
  4. Test the temperature sensors to ensure they are providing accurate readings.
  5. Replace the faulty control module, repair any wiring issues, and refill the transmission fluid as needed.

Cost to Fix P0C1B

The cost of repairing a high internal temperature in the auxiliary transmission fluid pump control module can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is important to note that the actual cost may be higher or lower based on the location, vehicle make and model, and the labor rates of the auto repair shop. It is recommended to obtain a detailed estimate from a qualified mechanic before proceeding with the 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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