AutoCodes – Generic – P187A

P187A Code - Gear Block 5th

Quick Answer

The Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU) monitors if the gear engagement is normal. Common causes include Malfunction of Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU), Insufficient fluid level, Malfunction of TC-SST gear. 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: P187A indicates Gear Block 5th.
Common causes: Common causes include Malfunction of Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU), Insufficient fluid level, Malfunction of TC-SST gear.
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.

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Code Popularity 6,590

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P187A Description

The Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU) monitors if the gear engagement is normal. The TC-SST-ECU set the OBDII code when it determined that the engagement of the 5th gear to be impossible.

OBDII Code P187A - Gear Block 5th - AutoCodes.com — P187A Code - Gear Block 5th

What does this mean?

What are the Possible Causes of the DTC P187A?

Malfunction of Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU)
Insufficient fluid level
Malfunction of TC-SST gear
Malfunction of clutch assembly

How to Fix the DTC P187A?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P187A 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 P187A code?

Need more information on how to fix the P187A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P187A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P187A Mitsubishi — Gear Block 5th

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 P187A Code

1. What are the common symptoms of OBDII code P187A (Gear Block 5th)?

The common symptoms of OBDII code P187A include harsh shifting, transmission slippage, and the inability to engage or disengage the 5th gear.

2. What are the possible causes of OBDII code P187A (Gear Block 5th)?

Possible causes of OBDII code P187A include a faulty transmission solenoid, low transmission fluid, a malfunctioning transmission control module (TCM), or mechanical issues within the transmission.

3. How can I diagnose OBDII code P187A (Gear Block 5th)?

Diagnosing OBDII code P187A typically involves using a scan tool to retrieve the code, conducting a visual inspection of the transmission components, checking the fluid level and condition, and performing a test drive to observe the symptoms.

4. Can I continue driving with OBDII code P187A (Gear Block 5th) present?

It is not recommended to continue driving with OBDII code P187A active, as it can lead to further damage to the transmission and potentially unsafe driving conditions.

5. How can I repair OBDII code P187A (Gear Block 5th)?

Repairing OBDII code P187A may involve replacing a faulty transmission solenoid, addressing low fluid levels, repairing or replacing the TCM, or repairing any mechanical issues within the transmission.

6. Will resetting the OBDII code P187A (Gear Block 5th) make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to return. It is important to diagnose and repair the root cause of the code to prevent it from reoccurring.

7. How much does it typically cost to repair OBDII code P187A (Gear Block 5th)?

The cost of repairing OBDII code P187A can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates of the repair shop. It is advisable to get a diagnosis and estimate from a qualified mechanic.

8. Can a DIY enthusiast fix OBDII code P187A (Gear Block 5th) at home?

While some aspects of diagnosing and repairing OBDII code P187A can be done by a knowledgeable DIY enthusiast, working on the transmission system can be complex and may require specialized tools and expertise. It is recommended to consult a professional mechanic for transmission-related issues.

9. Are there any preventive maintenance tips to avoid OBDII code P187A (Gear Block 5th)?

Regularly checking and changing the transmission fluid as per the manufacturer's recommendations, addressing any fluid leaks promptly, and avoiding harsh driving habits can help prevent issues that may trigger OBDII code P187A.

10. Is OBDII code P187A (Gear Block 5th) a common issue in specific vehicle makes or models?

OBDII code P187A can occur in various vehicle makes and models, particularly those with automatic transmissions. However, the prevalence of this specific code may vary depending on the design and components of each vehicle's transmission system.