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Engine-Codes – Subaru – P1513 Subaru

P1513 Subaru Code - Idle Air Control Solenoid Valve Signal 2 Circuit High Input

Quick Answer

The P1513 Subaru code indicates that there is a high input signal detected in the Idle Air Control (IAC) Solenoid Valve circuit 2. Common causes include Faulty Idle Air Control Solenoid Valve, Wiring issues in the IAC Solenoid Valve circuit, PCM malfunction. 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
P1513 Subaru indicates Idle Air Control Solenoid Valve Signal 2 Circuit High Input.
Common causes
Common causes include Faulty Idle Air Control Solenoid Valve, Wiring issues in the IAC Solenoid Valve circuit, PCM malfunction.
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 P1513 Subaru Description

The P1513 Subaru code indicates that there is a high input signal detected in the Idle Air Control (IAC) Solenoid Valve circuit 2. The IAC solenoid valve is responsible for controlling the amount of air that bypasses the throttle plate in order to maintain the engine idle speed. When the PCM (Powertrain Control Module) detects a high input signal in this circuit, it means that there is an issue with the electrical signal being sent to the IAC solenoid valve, which can result in unstable engine idle speed. This can lead to poor engine performance, stalling, rough idling, and potentially even engine misfires.

OBDII Code P1513 Subaru - Idle Air Control Solenoid Valve Signal 2 Circuit High Input
P1513 Subaru Code - Idle Air Control Solenoid Valve Signal 2 Circuit High Input

Common Causes of P1513 Subaru

  1. Faulty Idle Air Control Solenoid Valve
  2. Wiring issues in the IAC Solenoid Valve circuit
  3. PCM malfunction
  4. Vacuum leaks
  5. Dirty or clogged IAC valve

Symptoms of P1513 Subaru

  1. Unstable idle speed
  2. Engine stalling
  3. Rough idling
  4. Engine misfires
  5. Decreased fuel efficiency

How to Fix P1513 Subaru

  1. Diagnose the issue by using a scan tool to verify the P1513 code and check the IAC Solenoid Valve circuit for any visible damage or loose connections.
  2. Test the Idle Air Control Solenoid Valve to determine if it is functioning properly. If it is faulty, replace the valve with a new one.
  3. Inspect the wiring in the IAC Solenoid Valve circuit for any signs of damage or corrosion. Repair or replace any damaged wiring.
  4. Check the PCM for any signs of malfunction and reprogram or replace it if necessary.
  5. Clear the diagnostic trouble codes from the PCM and perform a test drive to ensure that the issue has been resolved.

Cost to Fix P1513 Subaru

The typical repair costs for addressing the P1513 Subaru code can vary depending on the specific cause of the issue. Generally, replacing a faulty Idle Air Control Solenoid Valve can cost between $100 and $200, while repairing wiring issues or replacing the PCM can cost between $200 and $500. Labor costs for this type of repair can range from $100 to $300. It is advisable to consult with a professional mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of your vehicle.

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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 P1513 Subaru Code

1. What are the common symptoms of OBDII code P1513 in a Subaru related to the Idle Air Control (IAC) Solenoid Valve Signal 2 Circuit High Input?

The common symptoms associated with this code may include rough idle, stalling when coming to a stop, and potential fluctuations in engine speed.

2. What are the possible causes of OBDII code P1513 in a Subaru?

The code P1513 in a Subaru indicating a high input in the Idle Air Control (IAC) Solenoid Valve Signal 2 Circuit can be caused by a faulty IAC solenoid, wiring issues, or a problem with the engine control module.

3. How can I diagnose the cause of OBDII code P1513 in my Subaru?

To diagnose the issue, you can start by checking the wiring connections related to the Idle Air Control (IAC) Solenoid Valve. You can also test the IAC solenoid itself and inspect for any visible signs of damage.

4. Is it safe to drive my Subaru with OBDII code P1513 present?

If you are experiencing symptoms like rough idle or stalling, it is not recommended to continue driving your Subaru with the code P1513 present. It is best to address the issue promptly to avoid potential engine problems.

5. Can I fix OBDII code P1513 in my Subaru by cleaning the Idle Air Control (IAC) Solenoid Valve?

While cleaning the IAC solenoid valve may sometimes help with minor issues, if the code P1513 persists, it is advisable to consider replacing the faulty components for a more permanent solution.

6. Are there any DIY repair tips for resolving OBDII code P1513 in a Subaru?

If you are familiar with automotive repairs, you can attempt to inspect the wiring connections, clean the IAC solenoid valve, and check for any vacuum leaks that may be contributing to the issue.

7. How much does it typically cost to repair OBDII code P1513 in a Subaru at a professional auto repair shop?

The cost of repairing OBDII code P1513 in a Subaru can vary depending on the exact cause of the issue and the labor rates of the repair shop. It is recommended to obtain a diagnosis from a trusted mechanic for an accurate estimate.

8. Can a faulty Idle Air Control (IAC) Solenoid Valve cause other OBDII codes to appear in a Subaru?

Yes, a malfunctioning IAC solenoid valve can potentially trigger other related OBDII codes, such as P1512 or P1514, which are also associated with the Idle Air Control system.

9. How important is it to address OBDII code P1513 in a Subaru promptly?

It is important to address OBDII code P1513 promptly to prevent potential drivability issues, engine performance problems, and further damage to the vehicle's components that could result from prolonged driving with this fault.

10. Can resetting the OBDII system clear the P1513 code in a Subaru?

Resetting the OBDII system may temporarily clear the P1513 code, but if the underlying issue with the Idle Air Control (IAC) Solenoid Valve Signal 2 Circuit High Input is not resolved, the code is likely to reappear.

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