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Engine-Codes – GMC – U019E GMC

U019E GMC Code - Lost Communication With Transmission Range Control Module

Quick Answer

The U019E code for GMC vehicles indicates that there is a communication issue with the Transmission Range Control Module (TRCM). Common causes include Faulty wiring connections, Defective Transmission Range Control Module (TRCM), Software glitch in the vehicle's computer system. 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
U019E GMC indicates Lost Communication With Transmission Range Control Module.
Common causes
Common causes include Faulty wiring connections, Defective Transmission Range Control Module (TRCM), Software glitch in the vehicle's computer system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code U019E GMC Description

The U019E code for GMC vehicles indicates that there is a communication issue with the Transmission Range Control Module (TRCM). This module is responsible for controlling the transmission gear range and ensuring proper communication between the transmission and the vehicle's onboard computer system. When communication is lost with the TRCM, it can lead to a variety of issues with the transmission's performance and overall vehicle operation.

OBDII Code U019E GMC - Lost Communication With Transmission Range Control Module
U019E GMC Code - Lost Communication With Transmission Range Control Module

Common Causes of U019E GMC

  1. Faulty wiring connections
  2. Defective Transmission Range Control Module (TRCM)
  3. Software glitch in the vehicle's computer system
  4. Communication network issues between TRCM and other modules
  5. Water damage or corrosion in the transmission control circuit

Symptoms of U019E GMC

  1. Erratic shifting patterns
  2. Transmission slippage
  3. Transmission getting stuck in a specific gear
  4. Dashboard warning lights illuminated
  5. Vehicle may go into "limp mode" to protect the transmission

How to Fix U019E GMC

  1. Inspect and repair any faulty wiring connections
  2. Test and, if necessary, replace the Transmission Range Control Module (TRCM)
  3. Update the vehicle's software to address any glitches
  4. Check and repair any communication network issues between modules
  5. Inspect for water damage or corrosion and address as needed

Cost to Fix U019E GMC

The typical repair costs for addressing a U019E code can vary depending on the specific cause of the communication issue. In general, the cost can range from $200 to $800, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary greatly, so it is advisable to check with local shops for a more accurate estimate. Additionally, factors such as the vehicle make and model, location, and engine type can also impact the overall repair costs.

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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.

Frequently Asked Questions about U019E GMC Code

1. What are the common symptoms of OBDII code U019E GMC?

- Common symptoms include transmission shifting issues, inability to shift gears, dashboard warning lights related to the transmission, and potential stalling of the vehicle.

2. What could cause the OBDII code U019E GMC to appear?

- The code may appear due to a poor electrical connection, damaged wiring harness, a malfunctioning transmission range control module, or issues with the CAN (Controller Area Network) bus communication system.

3. How can I diagnose the cause of the U019E code?

- Diagnosing the U019E code requires using a professional OBDII scanner to retrieve the specific details of the code, checking the connections and wiring related to the transmission range control module, and testing the module itself for faults.

4. Can I continue driving my vehicle with the U019E code present?

- It is not recommended to drive your vehicle with the U019E code present, as it can lead to further transmission problems and potentially unsafe driving conditions. It is advised to address the issue promptly.

5. What are some repair tips for fixing the U019E code?

- Repair tips include checking and repairing any damaged wiring, ensuring proper connections to the transmission range control module, and potentially replacing the module if it is found to be faulty.

6. Is the U019E code a serious issue that requires immediate attention?

- Yes, the U019E code is a serious issue that should be addressed promptly to prevent further damage to the transmission system and ensure the safety and reliability of the vehicle.

7. Can a DIY enthusiast fix the U019E code, or is professional help necessary?

- While some basic checks and repairs can be done by a DIY enthusiast, diagnosing and repairing the U019E code may require specialized tools and expertise, so seeking professional help is often recommended.

8. How much does it typically cost to repair the U019E code?

- The cost of repairing the U019E code can vary depending on the underlying cause of the issue, the extent of the repairs needed, and whether any parts need to be replaced. It is recommended to obtain a few quotes from different mechanics for an accurate estimate.

9. Are there any preventive measures to avoid the U019E code in the future?

- Regularly inspecting and maintaining the transmission system, ensuring all electrical connections are secure, and addressing any warning signs of transmission issues promptly can help prevent the occurrence of the U019E code in the future.

10. Can resetting the OBDII system clear the U019E code permanently?

- Resetting the OBDII system may temporarily clear the U019E code, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause of the problem for a permanent solution.

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