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P1516 Acura Code - Throttle Actuator Control Position Performance

Quick Answer

The P1516 Acura code indicates a problem with the Throttle Actuator Control (TAC) system's performance. Common causes include Faulty throttle position sensor, Malfunctioning throttle body, Wiring issues in the TAC 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
P1516 Acura indicates Throttle Actuator Control Position Performance.
Common causes
Common causes include Faulty throttle position sensor, Malfunctioning throttle body, Wiring issues in the TAC 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 10, 2024
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Code P1516 Acura Description

The P1516 Acura code indicates a problem with the Throttle Actuator Control (TAC) system's performance. The TAC system is responsible for controlling the throttle valve opening angle based on input from the accelerator pedal position sensor. When this code is triggered, it means that the Engine Control Module (ECM) has detected that the actual position of the throttle does not match the desired position.

OBDII Code P1516 Acura - Throttle Actuator Control Position Performance
P1516 Acura Code - Throttle Actuator Control Position Performance

Common Causes of P1516 Acura

  1. Faulty throttle position sensor
  2. Malfunctioning throttle body
  3. Wiring issues in the TAC system
  4. ECM software malfunction
  5. Mechanical issue with the throttle linkage

Symptoms of P1516 Acura

  1. Lack of power or acceleration
  2. Rough idling or stalling
  3. Engine hesitation
  4. Check Engine Light illuminated
  5. Inability to start the engine

How to Fix P1516 Acura

  1. Diagnose the issue using a scan tool to retrieve the trouble code and perform a thorough inspection of the TAC system components.
  2. Test the throttle position sensor to ensure it is functioning correctly. Replace if necessary.
  3. Inspect the throttle body for any signs of wear or malfunction. Clean or replace as needed.
  4. Check the wiring harness for any damaged or corroded wires. Repair or replace as necessary.
  5. Reset the ECM and perform a throttle body relearn procedure to ensure proper calibration of the TAC system.

Cost to Fix P1516 Acura

The typical cost to repair a P1516 Acura code can range from $200 to $500, including parts and labor. However, it's essential to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more accurate estimate.

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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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