AutoCodes – Toyota – P2402 2001 Toyota Highlander

P2402 2001 Toyota Highlander Code - EVAP System Leak Detection Pump Control Circuit High

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: P2402 2001 Toyota Highlander indicates EVAP System Leak Detection Pump Control Circuit High.
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 2,098

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 P2402 2001 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 P2402 2001 Toyota Highlander - EVAP System Leak Detection Pump Control Circuit High - AutoCodes.com — P2402 2001 Toyota Highlander Code - EVAP System Leak Detection Pump Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P2402 2001 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 P2402 2001 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 P2402 2001 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 P2402 2001 Toyota Highlander code?

Need more information on how to fix the P2402 2001 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2402 2001 Toyota Highlander code diagnosed by a professional: Find a repair shop in your area

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 P2402 2001 Toyota Highlander Code

1. What does OBDII code P2402 mean for a 2001 Toyota Highlander?

The code P2402 indicates a malfunction in the EVAP system Leak Detection Pump Control Circuit, specifically a high voltage condition.

2. What are the common symptoms of OBDII code P2402 in a 2001 Toyota Highlander?

Common symptoms include the check engine light being illuminated, decreased fuel efficiency, and potential issues with passing emissions tests.

3. What are the possible causes of OBDII code P2402 in a 2001 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 the OBDII code P2402 in my 2001 Toyota Highlander?

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the EVAP system components for any visible damage, and testing the leak detection pump control circuit for proper voltage.

5. Can I still drive my 2001 Toyota Highlander with OBDII code P2402?

While the vehicle may still be operable, it is recommended to address the issue promptly to prevent any potential damage to the EVAP system and ensure optimal performance.

6. How do I repair OBDII code P2402 in my 2001 Toyota Highlander?

Repairing the code P2402 may involve replacing the leak detection pump, repairing any damaged wiring or connectors, or addressing any issues with the EVAP system pressure sensor.

7. Are there any DIY tips for fixing OBDII code P2402 in a 2001 Toyota Highlander?

DIY tips may include checking for loose or damaged wiring, ensuring proper connections in the control circuit, and following the vehicle's service manual for specific repair procedures.

8. Will OBDII code P2402 reset itself after repairs are made on a 2001 Toyota Highlander?

After repairs are made and the underlying issue is resolved, the code P2402 can be cleared using an OBDII scanner to reset the check engine light.

9. Is it necessary to take my 2001 Toyota Highlander to a mechanic for OBDII code P2402?

While some DIY repairs may be possible, it is recommended to consult a qualified mechanic for proper diagnosis and repair of OBDII code P2402 to ensure the issue is fully resolved.

10. How much does it cost to fix OBDII code P2402 in a 2001 Toyota Highlander?

The cost of fixing OBDII code P2402 can vary depending on the specific underlying issue, parts needed for repair, labor costs, and whether you choose to go to a dealership or an independent mechanic.