AutoCodes – Mitsubishi – P0506 Mitsubishi

P0506 Mitsubishi Code - Idle Control System RPM Lower Than Expected

Quick Answer

The Engine Control Module (ECM) controls the engine idle speed to a specified level through the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. Common causes include Dirty throttle body, Electric throttle control actuator misadjusted or damaged, Faulty Electric throttle control actuator. 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
P0506 Mitsubishi indicates Idle Control System RPM Lower Than Expected.
Common causes
Common causes include Dirty throttle body, Electric throttle control actuator misadjusted or damaged, Faulty Electric throttle control actuator.
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 28,586
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0506 Mitsubishi Description

The Engine Control Module (ECM) controls the engine idle speed to a specified level through the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is varied to allow for optimum control of the engine idling speed. The ECM calculates the actual engine speed from signals of crankshaft position sensor (POS) and camshaft position sensor.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily. The optimum value stored in the ECM is determined by taking into consideration various engine conditions, such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan operation, etc.)
OBDII Code P0506 Mitsubishi - Idle Control System RPM Lower Than Expected - AutoCodes.com
P0506 Mitsubishi Code - Idle Control System RPM Lower Than Expected

What are the Possible Causes of the DTC P0506 Mitsubishi?

  • Dirty throttle body
  • Electric throttle control actuator misadjusted or damaged
  • Faulty Electric throttle control actuator
  • Intake air leak
  • Poor electrical connection to the Intake Air Control (IAC) valve

How to Fix the DTC P0506 Mitsubishi?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0506 Mitsubishi 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 P0506 Mitsubishi code?

Need more information on how to fix the P0506 Mitsubishi code? Get Access to Factory Service Manuals

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 P0506 Mitsubishi Code

1. What are the common symptoms of OBDII code P0506 in a Mitsubishi?

- Common symptoms include a fluctuating or low idle RPM, stalling at idle, and possible rough idling.

2. What are the typical causes of OBDII code P0506 in a Mitsubishi?

- The code is often triggered by a faulty idle air control valve, a vacuum leak, a dirty throttle body, or issues with the air intake system.

3. How can I diagnose the cause of OBDII code P0506 in my Mitsubishi?

- You can start by checking for vacuum leaks, cleaning the throttle body, inspecting the idle air control valve, and ensuring proper operation of the air intake system.

4. Can a dirty throttle body cause OBDII code P0506 in a Mitsubishi?

- Yes, a dirty throttle body can restrict airflow and disrupt the idle control system, leading to the triggering of code P0506.

5. Is it safe to continue driving my Mitsubishi with OBDII code P0506 present?

- While the vehicle may still be driveable, it is recommended to address the issue promptly to prevent potential stalling or further damage to engine components.

6. How can I repair OBDII code P0506 in my Mitsubishi?

- Repair options may include cleaning or replacing the idle air control valve, fixing vacuum leaks, cleaning the throttle body, or addressing any issues with the air intake system.

7. Will resetting the OBDII code P0506 in my Mitsubishi make it go away permanently?

- Resetting the code may temporarily remove the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

8. Can a malfunctioning idle air control valve cause OBDII code P0506 in a Mitsubishi?

- Yes, a malfunctioning idle air control valve can disrupt the proper idle RPM control, leading to the triggering of code P0506.

9. What role does the idle control system play in the operation of a Mitsubishi vehicle?

- The idle control system regulates the engine's idle speed to ensure smooth operation when the vehicle is stationary, providing a stable RPM to prevent stalling.

10. Are there any DIY tips for troubleshooting OBDII code P0506 in a Mitsubishi?

- You can start by checking for visible vacuum leaks, cleaning the throttle body with a specialized cleaner, and inspecting the idle air control valve for any obvious issues.

Discuss the causes and fixes for P0506 Mitsubishi OBDII Code

  • what is the correct idle speed for Mitsubishi outlander?

  • What year is your outlander? For most outlander the idle speeds should be at around 700 RPM.

  • Normally the idle speed for 6 cylinder engines between 700 to 750 RPM and 800 to 900 RPM for 4 cylinder engines whereas 8 cylinder engine RPM 600 and lower

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