AutoCodes – Toyota – P2402 2003 Toyota Highlander

P2402 2003 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 2003 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 2,387

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 2003 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 2003 Toyota Highlander - EVAP System Leak Detection Pump Control Circuit High - AutoCodes.com — P2402 2003 Toyota Highlander Code - EVAP System Leak Detection Pump Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P2402 2003 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 2003 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 2003 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 2003 Toyota Highlander code?

Need more information on how to fix the P2402 2003 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2402 2003 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 2003 Toyota Highlander Code

1. What are the common symptoms of OBDII code P2402 in a 2003 Toyota Highlander?

- Common symptoms may include the check engine light illuminating, rough idling, decreased fuel efficiency, and a noticeable fuel odor.

2. What does the OBDII code P2402 indicate in a 2003 Toyota Highlander?

- The code P2402 indicates a problem with the EVAP System Leak Detection Pump Control Circuit High in the vehicle.

3. What are the possible causes of OBDII code P2402 in a 2003 Toyota Highlander?

- Possible causes include a faulty leak detection pump, damaged wiring or connectors in the circuit, a malfunctioning EVAP system pressure sensor, or a defective ECM.

4. How can I diagnose the cause of OBDII code P2402 in my 2003 Toyota Highlander?

- Diagnosing the issue may involve inspecting the EVAP system components, checking the wiring and connectors for damage, testing the leak detection pump, and using a scan tool to monitor sensor data.

5. Can I continue driving my 2003 Toyota Highlander with OBDII code P2402?

- It is generally not recommended to continue driving with this code as it can lead to increased emissions, potential engine damage, and may cause the vehicle to fail an emissions test.

6. How can I repair OBDII code P2402 in my 2003 Toyota Highlander?

- Repairing the code may involve replacing the leak detection pump, repairing any damaged wiring or connectors, replacing the EVAP system pressure sensor, or reprogramming the ECM.

7. Are there any DIY tips for fixing OBDII code P2402 in a 2003 Toyota Highlander?

- While some basic troubleshooting like checking for loose connections or damaged wires can be done by DIY enthusiasts, diagnosing and repairing the specific issue may require professional expertise.

8. How much does it cost to repair OBDII code P2402 in a 2003 Toyota Highlander?

- Repair costs can vary depending on the exact cause of the code and labor rates in your area. It's recommended to get a diagnostic from a qualified mechanic for an accurate estimate.

9. Can resetting the OBDII code P2402 in my 2003 Toyota Highlander make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not fixed, the code is likely to reappear after a certain period of driving.

10. Is it necessary to take my 2003 Toyota Highlander to a dealership for OBDII code P2402 repairs?

- While a dealership may have specific expertise with Toyota vehicles, any qualified mechanic with experience in diagnosing and repairing EVAP system issues should be able to address OBDII code P2402 effectively.