Engine-CodesMitsubishi – P0593 Mitsubishi

P0593 Mitsubishi Code - Speed Control Switch 2 Circuit High

Quick Answer

The P0593 code in a Mitsubishi vehicle indicates a problem with the Speed Control Switch 2 Circuit being too high. Common causes include Faulty speed control switch, Damaged wiring or connectors in the circuit, Malfunctioning ECM. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0593 Mitsubishi indicates Speed Control Switch 2 Circuit High.
Common causes
Common causes include Faulty speed control switch, Damaged wiring or connectors in the circuit, Malfunctioning ECM.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0593 Mitsubishi Description

The P0593 code in a Mitsubishi vehicle indicates a problem with the Speed Control Switch 2 Circuit being too high. This code is typically triggered when the Engine Control Module (ECM) detects a voltage signal from the speed control switch that is higher than the specified range. The speed control switch is responsible for controlling the vehicle's speed, such as engaging cruise control, so a malfunction in this circuit can lead to issues with speed regulation.

OBDII Code P0593 Mitsubishi - Speed Control Switch 2 Circuit High
P0593 Mitsubishi Code - Speed Control Switch 2 Circuit High

Common Causes of P0593 Mitsubishi

  1. Faulty speed control switch
  2. Damaged wiring or connectors in the circuit
  3. Malfunctioning ECM
  4. Electrical issues in the vehicle's system

Symptoms of P0593 Mitsubishi

  1. Erratic speed control
  2. Difficulty engaging cruise control
  3. Inoperable cruise control system
  4. Check Engine Light illuminated

How to Fix P0593 Mitsubishi

  1. Diagnose the specific cause of the P0593 code using a diagnostic scanner.
  2. Inspect the speed control switch for any signs of damage or malfunction.
  3. Check the wiring and connectors in the circuit for any breaks or corrosion.
  4. Test the ECM to ensure it is functioning correctly.
  5. Repair or replace any faulty components as necessary to resolve the issue.

Cost to Fix P0593 Mitsubishi

The typical repair costs for addressing a P0593 code in a Mitsubishi vehicle can range from $150 to $400, depending on the specific cause of the issue and the labor rates at the auto repair shop. This estimate includes the cost of parts, such as a new speed control switch or wiring harness, as well as the labor required to diagnose and repair the problem. It's important to note that the actual cost may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your specific situation.

When is the Code Detected?

The ECM has detected that the speed control switch 2 is above minimum voltage range

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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 P0593 Mitsubishi Code

1. What are the common symptoms of OBDII code P0593 in a Mitsubishi related to the Speed Control Switch 2 Circuit High?

- Common symptoms include the vehicle's speed control system not functioning properly, the cruise control not working, and the check engine light being illuminated.

2. What are the possible causes of the Speed Control Switch 2 Circuit High error code (P0593) in a Mitsubishi?

- Possible causes may include a faulty speed control switch, damaged wiring or connectors in the speed control circuit, or a malfunctioning PCM (Powertrain Control Module).

3. How can I diagnose the Speed Control Switch 2 Circuit High error code (P0593) in my Mitsubishi?

- Diagnosis typically involves checking the speed control switch for proper operation, inspecting the wiring and connectors for any damage, and using a scan tool to read the code and related data.

4. Can I still drive my Mitsubishi with the P0593 error code related to the Speed Control Switch 2 Circuit High?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper operation of the speed control system.

5. How can I repair the Speed Control Switch 2 Circuit High issue (P0593) in my Mitsubishi?

- Repair options may include replacing the speed control switch, repairing any damaged wiring or connectors, or reprogramming the PCM if necessary.

6. Is it possible to reset the OBDII code P0593 related to the Speed Control Switch 2 Circuit High in my Mitsubishi?

- Resetting the code can be done with an OBDII scanner, but it is important to address the underlying issue causing the code before clearing it to prevent it from returning.

7. Does the Speed Control Switch 2 Circuit High error code (P0593) affect the overall performance of my Mitsubishi?

- While the code may not directly impact the performance of the vehicle, it can affect the functionality of the speed control system and cruise control feature.

8. Are there any DIY tips for troubleshooting the P0593 error code in my Mitsubishi?

- DIY tips may include visually inspecting the speed control switch and associated wiring, checking for loose connections, and ensuring the switch operates smoothly.

9. Can a mechanic help me diagnose and fix the Speed Control Switch 2 Circuit High error code (P0593) in my Mitsubishi?

- Yes, a qualified mechanic can perform a thorough diagnosis using specialized tools and expertise to pinpoint the exact cause of the error code and recommend appropriate repairs.

10. How long does it typically take to repair the OBDII code P0593 related to the Speed Control Switch 2 Circuit High in a Mitsubishi?

- The repair time can vary depending on the underlying issue. Simple fixes like replacing a switch or repairing wiring may take a few hours, while more complex problems could require more time.

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