AutoCodes – Mitsubishi – P186E Mitsubishi

P186E Mitsubishi Code - High Side 2 System Voltage Low Range Out

Quick Answer

The Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU) monitors the system and the voltage of the high side 2 circuit is determined to be too low. Common causes include Faulty Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU), TC-SST-ECU harness is open or shorted, TC-SST-ECU circuit poor electrical connection. 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: P186E Mitsubishi indicates High Side 2 System Voltage Low Range Out.
Common causes: Common causes include Faulty Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU), TC-SST-ECU harness is open or shorted, TC-SST-ECU circuit poor electrical connection.
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 1,187

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 Jan 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P186E Mitsubishi Description

The Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU) monitors the system and the voltage of the high side 2 circuit is determined to be too low.

OBDII Code P186E Mitsubishi - High Side 2 System Voltage Low Range Out - AutoCodes.com — P186E Mitsubishi Code - High Side 2 System Voltage Low Range Out

What does this mean?

What are the Possible Causes of the DTC P186E Mitsubishi?

Faulty Twin Clutch Sportronic Shift Transmission (TC-SST) Electronic Control Unit (ECU)
TC-SST-ECU harness is open or shorted
TC-SST-ECU circuit poor electrical connection

How to Fix the DTC P186E Mitsubishi?

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 P186E Mitsubishi 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 P186E Mitsubishi code?

Need more information on how to fix the P186E Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P186E Mitsubishi Code

1. What are the common symptoms of OBDII code P186E in a Mitsubishi vehicle?

The common symptoms of OBDII code P186E include rough idling, poor acceleration, reduced engine power, and potentially stalling.

2. What does the OBDII code P186E "High Side 2 System Voltage Low Range Out" mean in a Mitsubishi?

The code P186E indicates that the voltage on the high side of the fuel pump control circuit is below the expected range in a Mitsubishi vehicle.

3. What are the possible causes of OBDII code P186E in a Mitsubishi?

Possible causes of code P186E include a faulty fuel pump, damaged wiring or connectors in the fuel pump circuit, a failing fuel pump control module, or issues with the vehicle's power supply.

4. How can I diagnose OBDII code P186E in my Mitsubishi?

Diagnosing code P186E involves using a scan tool to retrieve the code, inspecting the fuel pump and its circuit for any visible damage, and testing the fuel pump control module and related components for proper functionality.

5. Is it safe to drive my Mitsubishi with OBDII code P186E active?

It is not recommended to drive your Mitsubishi with OBDII code P186E active, as it can lead to further damage to the fuel pump system and potentially cause engine performance issues.

6. Can I reset OBDII code P186E in my Mitsubishi without fixing the underlying issue?

While you can clear the code temporarily, it will likely reappear until the root cause is addressed. It is important to diagnose and repair the issue to prevent further problems.

7. How much does it typically cost to repair OBDII code P186E in a Mitsubishi?

The cost of repairing OBDII code P186E in a Mitsubishi can vary depending on the specific cause of the issue, but it may involve replacing the fuel pump, repairing wiring, or replacing the fuel pump control module.

8. Are there any DIY tips for fixing OBDII code P186E in a Mitsubishi?

DIY tips for addressing code P186E include checking for loose or damaged wiring in the fuel pump circuit, ensuring proper connections, and testing the fuel pump and control module with a multimeter.

9. Can a mechanic easily fix OBDII code P186E in a Mitsubishi?

A qualified mechanic with experience in diagnosing and repairing fuel system issues should be able to efficiently address OBDII code P186E in a Mitsubishi by pinpointing the root cause and carrying out the necessary repairs.

10. How can I prevent OBDII code P186E from occurring in my Mitsubishi in the future?

To prevent OBDII code P186E from occurring, it is essential to regularly maintain your vehicle, keep an eye on fuel system components for signs of wear, and address any issues promptly to avoid potential failures.