AutoCodes – Toyota – P2402 2005 Toyota Highlander

P2402 2005 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 2005 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,371
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2402 2005 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 2005 Toyota Highlander - EVAP System Leak Detection Pump Control Circuit High - AutoCodes.com
P2402 2005 Toyota Highlander Code - EVAP System Leak Detection Pump Control Circuit High

What are the Possible Causes of the DTC P2402 2005 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 2005 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 2005 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 2005 Toyota Highlander code?

Need more information on how to fix the P2402 2005 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 P2402 2005 Toyota Highlander Code

1. What does the OBDII code P2402 for a 2005 Toyota Highlander indicate?

The code P2402 indicates a problem with the EVAP (Evaporative Emission Control) System Leak Detection Pump Control Circuit being too high in a 2005 Toyota Highlander.

2. What are the common symptoms of OBDII code P2402 in a 2005 Toyota Highlander?

Common symptoms of this code may include the check engine light illuminating on the dashboard and possible issues with the vehicle's emission control system.

3. What are the potential causes of OBDII code P2402 in a 2005 Toyota Highlander?

Common causes of code P2402 can include a faulty leak detection pump, damaged wiring or connectors in the circuit, or a malfunctioning EVAP system component.

4. How can I diagnose the OBDII code P2402 in my 2005 Toyota Highlander?

Diagnosing code P2402 often involves using an OBDII scanner to retrieve the code, checking the wiring and connectors related to the leak detection pump, and performing a smoke test to identify any leaks in the EVAP system.

5. Can I continue driving my 2005 Toyota Highlander with OBDII code P2402?

It is generally not recommended to continue driving with an unresolved EVAP system issue, as it can lead to increased emissions and potential damage to other components. It's best to address the problem promptly.

6. How can I repair OBDII code P2402 in a 2005 Toyota Highlander?

Repairing code P2402 may involve replacing the leak detection pump, repairing any damaged wiring or connectors, or fixing any leaks in the EVAP system.

7. Are there any DIY tips for fixing OBDII code P2402 in a 2005 Toyota Highlander?

While some basic troubleshooting like checking for loose connections or damaged wires can be done by DIY enthusiasts, resolving code P2402 may require more advanced diagnostic tools and expertise.

8. How much does it typically cost to repair OBDII code P2402 in a 2005 Toyota Highlander?

The cost of repairing code P2402 can vary depending on the underlying cause, the extent of the repair needed, and labor rates in your area. It's best to consult a mechanic for an accurate estimate.

9. Can a faulty gas cap trigger OBDII code P2402 in a 2005 Toyota Highlander?

While a loose or faulty gas cap can sometimes trigger EVAP system codes, code P2402 specifically relates to the leak detection pump control circuit, so a gas cap issue is unlikely to be the primary cause.

10. How often does OBDII code P2402 occur in a 2005 Toyota Highlander?

Code P2402 related to the EVAP system leak detection pump control circuit can occur sporadically in a 2005 Toyota Highlander, and its frequency may vary depending on the vehicle's maintenance and driving conditions.

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