AutoCodes – GMC – P1519 GMC

P1519 GMC Code - Throttle Actuator Control Module Internal Circuit

Quick Answer

The Throttle Actuator Control (TAC) module contains data which is essential for proper TAC operation. Common causes include Dead or weak battery, Faulty Throttle Actuator Control (TAC) module, Throttle Actuator Control (TAC) module harness is ope or shorted. 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 Dead or weak battery, Faulty Throttle Actuator Control (TAC) module, Throttle Actuator Control (TAC) module harness is ope or shorted.
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.

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Code Popularity 4,447

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1519 GMC Description

The Throttle Actuator Control (TAC) module contains data which is essential for proper TAC operation. The TAC module continuously test the integrity of this data. When the TAC module is unable to write or read data to and from random access memory (RAM), or the TAC module is unable to correctly read data from the flash memory or and internal TAC module processor fault is detected and the Diagnostic Trouble Code (DTC) is set.

OBDII Code P1519 GMC - Throttle Actuator Control Module Internal Circuit - AutoCodes.com — P1519 GMC Code - Throttle Actuator Control Module Internal Circuit

What does this mean?

What are the Possible Causes of the DTC P1519 GMC?

Dead or weak battery
Faulty Throttle Actuator Control (TAC) module
Throttle Actuator Control (TAC) module harness is ope or shorted
Throttle Actuator Control (TAC) module circuit poor electrical connection

How to Fix the DTC P1519 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1519 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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.