AutoCodes – Acura – P1519 Acura

P1519 Acura Code - Idle Air Control Valve Circuit Malfunction

Quick Answer

The target idle speed is in the Engine Control Module (ECM) memory for various engine conditions (coolant temperature, A/C operation, and other functions). Common causes include Faulty Idle Air Control Valve (IACV), Idle Air Control Valve harness is open or shorted, Idle Air Control Valve circuit poor electrical connection. 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 Acura indicates Idle Air Control Valve Circuit Malfunction.
Common causes
Common causes include Faulty Idle Air Control Valve (IACV), Idle Air Control Valve harness is open or shorted, Idle Air Control Valve circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 19,240
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 28, 2019
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Code P1519 Acura Description

The target idle speed is in the Engine Control Module (ECM) memory for various engine conditions (coolant temperature, A/C operation, and other functions). The ECM keeps the actual idle speed at the target idle speed by switching the Idle Air Control Valve (IACV) ON/OFF to control the intake airflow. In addition, the IACV functions as the first idle valve to control the actual speed according to the engine coolant temperature. If the duty cycle signals are not inputted to a circuit that checks return signals in the ECM, a malfunction is detected, and the P1519 code is stored.
OBDII Code P1519 Acura - Idle Air Control Valve Circuit Malfunction - AutoCodes.com
P1519 Acura Code - Idle Air Control Valve Circuit Malfunction

What are the Possible Causes of the DTC P1519 Acura?

  • Faulty Idle Air Control Valve (IACV)
  • Idle Air Control Valve harness is open or shorted
  • Idle Air Control Valve circuit poor electrical connection

How to Fix the DTC P1519 Acura?

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 Acura 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.

Need more information about the P1519 Acura code?

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Need Help with the Code?

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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 P1519 Acura Code

No Frequently Asked Questions about P1519 Acura Code found.

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