Engine-CodesMitsubishi – P0773 Mitsubishi

P0773 Mitsubishi Code - Reduction Solenoid Valve System

Quick Answer

The P0773 code in a Mitsubishi vehicle refers to an issue with the Reduction Solenoid Valve System. Common causes include Faulty reduction solenoid valve, Wiring or electrical issues in the solenoid circuit, Low transmission fluid level or poor-quality 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
P0773 Mitsubishi indicates Reduction Solenoid Valve System.
Common causes
Common causes include Faulty reduction solenoid valve, Wiring or electrical issues in the solenoid circuit, Low transmission fluid level or poor-quality 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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0773 Mitsubishi Description

The P0773 code in a Mitsubishi vehicle refers to an issue with the Reduction Solenoid Valve System. This system is responsible for controlling the flow of hydraulic fluid within the transmission, specifically in relation to the reduction gear. The reduction gear is crucial for adjusting the vehicle's speed and power output, especially during acceleration and deceleration.

OBDII Code P0773 Mitsubishi - Reduction Solenoid Valve System
P0773 Mitsubishi Code - Reduction Solenoid Valve System

Common Causes of P0773 Mitsubishi

  1. Faulty reduction solenoid valve
  2. Wiring or electrical issues in the solenoid circuit
  3. Low transmission fluid level or poor-quality fluid
  4. Mechanical damage or wear in the transmission components
  5. Issues with the engine control module (ECM) communication

Symptoms of P0773 Mitsubishi

  1. Rough or delayed shifting between gears
  2. Slipping or jerking sensation during acceleration
  3. Reduced fuel efficiency
  4. Illumination of the Check Engine Light
  5. Transmission overheating

How to Fix P0773 Mitsubishi

  1. Perform a thorough diagnostic scan to confirm the P0773 code and identify the specific issue with the reduction solenoid valve system.
  2. Inspect the wiring and electrical connections related to the solenoid valve for any damage or corrosion.
  3. Check the transmission fluid level and quality, topping off or replacing if necessary.
  4. Test the solenoid valve for proper operation and replace if found to be faulty.
  5. Clear the diagnostic trouble codes, test drive the vehicle to ensure proper shifting, and re-scan to verify the issue has been resolved.

Cost to Fix P0773 Mitsubishi

The typical repair costs for addressing a P0773 code in a Mitsubishi vehicle can range from $150 to $500, depending on the extent of the issue and whether any parts need to be replaced. This estimate includes the cost of diagnostic testing, labor, and any necessary repairs or replacements. It's important to note that prices can vary based on the location of the repair shop, the vehicle's make and model, and the specific labor rates in that area. It's recommended to obtain quotes from multiple shops to compare prices and ensure a fair cost for the repair.

When is the Code Detected?

The P0773 code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.

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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 P0773 Mitsubishi Code

What does the OBDII code P0773 mean on a Mitsubishi vehicle?

1. P0773 indicates a problem with the reduction solenoid valve system, specifically a malfunction or electrical fault in the solenoid circuit responsible for controlling gear shifts. 2.

What are the common symptoms of code P0773 in a Mitsubishi?

Symptoms may include harsh or delayed shifting, slipping gears, a decrease in fuel efficiency, and the Check Engine Light being illuminated. 3.

What causes the P0773 code in Mitsubishi vehicles?

Common causes include a faulty reduction solenoid valve, damaged or corroded wiring, a malfunctioning transmission control module (TCM), or low transmission fluid levels. 4.

Can I drive my Mitsubishi with the P0773 code?

Driving with this code is not recommended, as it can lead to further transmission damage and reduced drivability if the issue is not addressed promptly. 5.

How is the P0773 code diagnosed in a Mitsubishi?

A mechanic will use an OBDII scanner to confirm the code, inspect the solenoid valve and its wiring for damage, check the transmission fluid level, and test the transmission control module. 6.

How do I fix the P0773 code on my Mitsubishi?

Repairs may involve replacing the faulty reduction solenoid valve, repairing damaged wiring or connectors, topping off or replacing the transmission fluid, or reprogramming the TCM if needed. 7.

Can low transmission fluid cause the P0773 code in a Mitsubishi?

Yes, low or contaminated transmission fluid can affect solenoid operation and trigger the P0773 code. 8.

How much does it cost to repair the P0773 code in a Mitsubishi?

Repair costs can vary but typically range from $150 to $400, depending on whether the solenoid valve, wiring, or other components need replacement. 9.

Is replacing the reduction solenoid valve the only solution for code P0773?

Not always. While the solenoid valve is often the issue, the cause could also be related to wiring, fluid levels, or the TCM, so proper diagnosis is essential. 10.

Can a bad transmission control module trigger the P0773 code in a Mitsubishi?

Yes, a malfunctioning TCM can fail to properly control the solenoid valve, resulting in the P0773 code.

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