AutoCodes – Toyota – P2401 2006 Toyota Highlander

P2401 2006 Toyota Highlander Code - EVAP System Leak Detection Pump Control Circuit Low

Quick Answer

5 hours after the ignition switch is turned OFF, the electric vacuum pump creates negative pressure (vacuum) in the EVAP (Evaporative Emission) system. Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum Pump Module 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: P2401 2006 Toyota Highlander indicates EVAP System Leak Detection Pump Control Circuit Low.
Common causes: Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum Pump Module 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 3,238

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2401 2006 Toyota Highlander Description

5 hours after the ignition switch is turned OFF, the electric vacuum pump creates negative pressure (vacuum) in the EVAP (Evaporative Emission) system. The Engine Control Module (ECM) monitors for leaks and actuator malfunctions based on the EVAP pressure.

OBDII Code P2401 2006 Toyota Highlander - EVAP System Leak Detection Pump Control Circuit Low - AutoCodes.com — P2401 2006 Toyota Highlander Code - EVAP System Leak Detection Pump Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2401 2006 Toyota Highlander?

Faulty Vacuum Pump Module
Vacuum Pump Module harness is open or shorted
Vacuum Pump Module circuit poor electrical connection.
Faulty Engine Control Module (ECM)

How to Fix the DTC P2401 2006 Toyota Highlander?

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 P2401 2006 Toyota Highlander 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 P2401 2006 Toyota Highlander code?

Need more information on how to fix the P2401 2006 Toyota Highlander 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 P2401 2006 Toyota Highlander Code

1. What does OBDII code P2401 mean for a 2006 Toyota Highlander?

Code P2401 indicates a problem with the EVAP system Leak Detection Pump Control Circuit Low.

2. What are the common symptoms of OBDII code P2401 in a 2006 Toyota Highlander?

Common symptoms include the check engine light coming on, decreased fuel efficiency, and potential issues with the vehicle's emission system.

3. What are the possible causes of OBDII code P2401 in a 2006 Toyota Highlander?

Possible causes include a faulty Leak Detection Pump, damaged wiring or connectors in the control circuit, or a malfunctioning EVAP system pressure sensor.

4. How can I diagnose OBDII code P2401 in my 2006 Toyota Highlander?

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the EVAP system components for visible damage, and testing the Leak Detection Pump and related circuitry.

5. Can I still drive my 2006 Toyota Highlander with OBDII code P2401?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent potential damage to the emission system and ensure optimal performance.

6. How can I repair OBDII code P2401 in my 2006 Toyota Highlander?

Repair options include replacing the Leak Detection Pump, repairing any damaged wiring or connectors, or addressing any issues with the EVAP system pressure sensor.

7. Will resetting the check engine light fix OBDII code P2401 in my 2006 Toyota Highlander?

Simply resetting the check engine light will not fix the underlying issue causing the code. It is important to diagnose and repair the problem to prevent the code from reoccurring.

8. How much does it cost to fix OBDII code P2401 in a 2006 Toyota Highlander?

The cost of fixing this code can vary depending on the specific cause of the issue, but it may range from around $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast repair OBDII code P2401 in a 2006 Toyota Highlander?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address this code by replacing components like the Leak Detection Pump or repairing wiring issues. However, professional assistance may be recommended for more complex repairs.

10. How often does OBDII code P2401 occur in a 2006 Toyota Highlander?

The occurrence of this code can vary, but it is not uncommon in vehicles with older EVAP systems or components that are prone to wear and tear over time. Regular maintenance and prompt repairs can help prevent this code from appearing.