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P187C Mitsubishi Code - Gear Block Reverse

Quick Answer

The diagnostic trouble code P187C for Mitsubishi vehicles relates to the Gear Block Reverse. Common causes include Worn or damaged reverse gear block, Faulty transmission solenoid, Low or contaminated transmission 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
P187C Mitsubishi indicates Gear Block Reverse.
Common causes
Common causes include Worn or damaged reverse gear block, Faulty transmission solenoid, Low or contaminated transmission 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 10, 2024
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Code P187C Mitsubishi Description

The diagnostic trouble code P187C for Mitsubishi vehicles relates to the Gear Block Reverse. This code indicates that there is an issue with the reverse gear block in the transmission system. The gear block reverse is responsible for engaging the reverse gear in the transmission, allowing the vehicle to move backward. When this system malfunctions, it can lead to a variety of issues that affect the performance and drivability of the vehicle.

OBDII Code P187C Mitsubishi - Gear Block Reverse
P187C Mitsubishi Code - Gear Block Reverse

Common Causes of P187C Mitsubishi

  1. Worn or damaged reverse gear block
  2. Faulty transmission solenoid
  3. Low or contaminated transmission fluid
  4. Malfunctioning transmission control module
  5. Mechanical issues with internal transmission components

Symptoms of P187C Mitsubishi

  1. Difficulty shifting into reverse gear
  2. Grinding or clunking noises when trying to engage reverse
  3. Vehicle not moving in reverse
  4. Transmission slipping in reverse
  5. Illumination of the Check Engine Light

How to Fix P187C Mitsubishi

  1. Perform a diagnostic scan to confirm the P187C code and pinpoint the exact cause of the issue.
  2. Inspect the reverse gear block and related components for any signs of wear or damage.
  3. Check the transmission fluid level and quality, and perform a transmission fluid flush and refill if necessary.
  4. Replace any faulty transmission solenoids or components that are contributing to the issue.
  5. Clear the trouble code from the vehicle's system and test drive to ensure the problem has been resolved.

Cost to Fix P187C Mitsubishi

The typical repair costs for resolving a Gear Block Reverse issue can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the cost for parts and labor for this repair can range from $500 to $1500. However, it's essential to keep in mind that labor rates at auto repair shops can vary based on location, dealership rates, and the vehicle's make and model. It's advisable to obtain quotes from multiple repair shops to get a more accurate estimate for this repair.

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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 P187C Mitsubishi Code

1. What are the common symptoms of OBDII code P187C (Mitsubishi) - Gear Block Reverse?

The common symptoms include difficulty shifting into reverse gear, delayed engagement when shifting into reverse, and potential transmission slippage.

2. What are the possible causes of OBDII code P187C (Mitsubishi) - Gear Block Reverse?

Possible causes include a faulty transmission range sensor, low transmission fluid level, a blocked transmission filter, or internal transmission damage.

3. How can I diagnose the OBDII code P187C (Mitsubishi) - Gear Block Reverse?

Diagnosis involves using a diagnostic scanner to retrieve the trouble code, conducting a visual inspection of the transmission components, checking the transmission fluid level and condition, and performing a road test to observe the symptoms.

4. Can driving with OBDII code P187C (Mitsubishi) - Gear Block Reverse cause further damage?

Continued driving with this code may lead to increased transmission wear, potential damage to internal transmission components, and further drivability issues. It is recommended to address the issue promptly.

5. What are some repair tips for fixing OBDII code P187C (Mitsubishi) - Gear Block Reverse?

Repair tips include checking and topping up transmission fluid, inspecting and replacing the transmission range sensor if faulty, ensuring proper transmission fluid flow by servicing the transmission filter, and seeking professional help for internal transmission repairs if needed.

6. Is it safe to continue driving my vehicle with OBDII code P187C (Mitsubishi) - Gear Block Reverse?

It is not recommended to drive the vehicle extensively with this code present, as it can lead to potential transmission issues and safety hazards. It is advisable to address the problem promptly.

7. Can a DIY enthusiast fix OBDII code P187C (Mitsubishi) - Gear Block Reverse?

While some basic checks like inspecting transmission fluid levels can be done by a DIY enthusiast, diagnosing and repairing the root cause of the code may require specialized tools and expertise. It is recommended to consult a professional mechanic for thorough diagnosis and repair.

8. How much does it typically cost to repair OBDII code P187C (Mitsubishi) - Gear Block Reverse?

The cost of repair can vary depending on the underlying cause of the code, parts needed for replacement, and labor charges. It is advisable to get a diagnostic assessment from a qualified mechanic to determine the exact cost.

9. Can resetting the OBDII system clear the P187C (Mitsubishi) code related to Gear Block Reverse?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem to prevent further issues.

10. How long does it take to repair OBDII code P187C (Mitsubishi) - Gear Block Reverse?

The repair time can vary based on the specific cause of the code and the complexity of the repair needed. Simple fixes like topping up transmission fluid can be done quickly, while more extensive repairs may take several hours or longer.

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