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Engine-Codes – GMC – P1519 GMC

P1519 GMC Code - Throttle Actuator Control Module Internal Circuit

Quick Answer

The P1519 code for GMC vehicles indicates a problem with the Throttle Actuator Control Module's internal circuit. Common causes include Faulty Throttle Actuator Control Module, Damaged wiring or connectors, ECM communication issues. 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
P1519 GMC indicates Throttle Actuator Control Module Internal Circuit.
Common causes
Common causes include Faulty Throttle Actuator Control Module, Damaged wiring or connectors, ECM communication issues.
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 10, 2024
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Code P1519 GMC Description

The P1519 code for GMC vehicles indicates a problem with the Throttle Actuator Control Module's internal circuit. The Throttle Actuator Control Module (TACM) is responsible for regulating the throttle opening angle in response to driver input. The TACM communicates with the Engine Control Module (ECM) to ensure the correct amount of air enters the engine for combustion.

OBDII Code P1519 GMC - Throttle Actuator Control Module Internal Circuit
P1519 GMC Code - Throttle Actuator Control Module Internal Circuit

Common Causes of P1519 GMC

  1. Faulty Throttle Actuator Control Module
  2. Damaged wiring or connectors
  3. ECM communication issues
  4. Corrosion or moisture in the TACM system
  5. Electrical problems within the system

Symptoms of P1519 GMC

  1. Reduced engine power
  2. Rough idling or stalling
  3. Unresponsive throttle
  4. Check Engine Light illuminated
  5. Limp mode activation

How to Fix P1519 GMC

  1. Perform a thorough diagnostic scan to confirm the P1519 code and identify the specific cause of the issue.
  2. Inspect the TACM wiring and connectors for any signs of damage, corrosion, or loose connections.
  3. Test the Throttle Actuator Control Module for proper functionality and replace it if necessary.
  4. Clear the error code and perform a reset to ensure the issue has been resolved.
  5. Test drive the vehicle to confirm that the symptoms have been eliminated and the TACM is functioning correctly.

Cost to Fix P1519 GMC

The typical repair costs for addressing a P1519 code can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate. Additionally, factors such as the vehicle make and model, engine type, and location can influence the overall repair costs.

When is the Code Detected?

The Engine Control Module (ECM) has detected a loss of data or invalid data from the Throttle Actuator Control (TAC)

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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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