Engine-Codes - Buick - P1518 BUICK

P1518 BUICK - Throttle Actuator Control Module Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1518 BUICK Possible Causes

  • 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
  • Check Throttle Actuator Control (TAC) module connector for water

How is the P1518 BUICK code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1518 BUICK code

Labor: 1.0

The cost to diagnose the P1518 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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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)

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • No throttle response

P1518 BUICK Meaning

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.

More Information

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