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P1758 Mitsubishi Code - Low-Reverse Brake Shift Solenoid Valve System

Quick Answer

The P1758 Mitsubishi code refers to an issue with the Low-Reverse Brake Shift Solenoid Valve System in the vehicle. Common causes include Faulty low-reverse brake shift solenoid valve, Wiring or electrical issues, Low transmission fluid levels or dirty fluid. 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
P1758 Mitsubishi indicates Low-Reverse Brake Shift Solenoid Valve System.
Common causes
Common causes include Faulty low-reverse brake shift solenoid valve, Wiring or electrical issues, Low transmission fluid levels or dirty fluid.
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 09, 2024
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Code P1758 Mitsubishi Description

The P1758 Mitsubishi code refers to an issue with the Low-Reverse Brake Shift Solenoid Valve System in the vehicle. This system is responsible for controlling the engagement and disengagement of the low-reverse brake, which is a crucial component in the transmission system. When this solenoid valve system malfunctions, it can lead to various problems with the vehicle's shifting and overall performance.

OBDII Code P1758 Mitsubishi - Low-Reverse Brake Shift Solenoid Valve System
P1758 Mitsubishi Code - Low-Reverse Brake Shift Solenoid Valve System

Common Causes of P1758 Mitsubishi

  1. Faulty low-reverse brake shift solenoid valve
  2. Wiring or electrical issues
  3. Low transmission fluid levels or dirty fluid
  4. Mechanical problems within the transmission system
  5. Software or programming issues in the transmission control module

Symptoms of P1758 Mitsubishi

  1. Harsh shifting between gears
  2. Delayed engagement when shifting into low or reverse
  3. Difficulty shifting gears
  4. Illumination of the Check Engine Light
  5. Transmission slipping or erratic behavior

How to Fix P1758 Mitsubishi

  1. Perform a diagnostic scan to confirm the P1758 code and identify the specific issue with the low-reverse brake shift solenoid valve system.
  2. Inspect the wiring and electrical connections related to the solenoid valve system for any damage or loose connections.
  3. Check the transmission fluid levels and condition, topping off or replacing as necessary.
  4. Test the solenoid valve for proper operation and replace if found to be faulty.
  5. Clear the diagnostic trouble codes, reset the transmission control module, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1758 Mitsubishi

The cost of repairing the P1758 Mitsubishi code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for a solenoid valve replacement can range from $100 to $300, with additional costs for labor. Overall, the total repair cost can range from $200 to $600 or more, including parts and labor. It is important to note that labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate based on your location and vehicle model.

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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 P1758 Mitsubishi Code

1. What does the OBDII code P1758 indicate on a Mitsubishi?

The P1758 code on a Mitsubishi indicates a malfunction in the low-reverse brake shift solenoid valve system, which is part of the vehicle’s transmission control system.

2. What are common symptoms of the P1758 code in a Mitsubishi?

Symptoms of the P1758 code may include the transmission failing to shift properly, slipping gears, decreased fuel efficiency, and the transmission entering limp mode. The check engine light will also be illuminated.

3. What can cause the P1758 code to appear in a Mitsubishi?

Possible causes of the P1758 code include a faulty low-reverse brake shift solenoid, poor electrical connections to the solenoid, a blockage in the transmission fluid passages, or low transmission fluid levels.

4. How is the P1758 code diagnosed in a Mitsubishi?

Diagnosing the P1758 code involves using a scan tool to check for the presence of the code, inspecting the wiring and connectors for damage, testing the solenoid’s resistance and operation, and checking the transmission fluid level and condition.

5. What are the steps to repair the P1758 code on a Mitsubishi?

Repair steps for the P1758 code typically include replacing the faulty low-reverse brake shift solenoid, repairing or replacing damaged wiring or connectors, cleaning or replacing blocked passages, and refilling or changing the transmission fluid if necessary.

6. Is it safe to drive a Mitsubishi with the P1758 code active?

While it may be possible to drive a vehicle with the P1758 code active, it is not recommended as it can lead to further damage to the transmission and potentially unsafe driving conditions due to erratic shifting.

7. How urgent is repairing a P1758 code in a Mitsubishi?

Repairing the P1758 code should be considered urgent, as ongoing issues with the transmission can lead to more severe and costly damage, and can compromise the safety and drivability of the vehicle.

8. Can a P1758 code affect the fuel economy of a Mitsubishi?

Yes, the P1758 code can affect fuel economy. Transmission problems can cause the engine to work harder, which in turn increases fuel consumption.

9. What tools are needed to diagnose the P1758 code on a Mitsubishi?

Tools needed to diagnose the P1758 code typically include an OBD-II scanner, a multimeter for electrical testing, and possibly a pressure gauge for testing transmission fluid pressure.

10. How can I prevent the P1758 code from occurring in my Mitsubishi?

Preventing the P1758 code can be achieved by maintaining proper transmission fluid levels, changing the fluid at manufacturer recommended intervals, and ensuring that the transmission system is regularly inspected for signs of wear and damage.

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