Engine-CodesToyota – P2402 2009 Toyota Camry

P2402 2009 Toyota Camry Code - EVAP System Leak Detection Pump Control Circuit High

Quick Answer

The P2402 diagnostic trouble code (DTC) for a 2009 Toyota Camry relates to the EVAP (Evaporative Emission Control) system. Common causes include Faulty Leak Detection Pump: The LDP itself may be malfunctioning, causing the control circuit to register a high voltage condition, Wiring Issues: Damaged or corroded wiring connecting the LDP to the control module can lead to electrical problems, Faulty Control Module: The control module responsible for monitoring the LDP may be faulty, causing it to detect a high voltage condition. 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 2009 Toyota Camry indicates EVAP System Leak Detection Pump Control Circuit High.
Common causes
Common causes include Faulty Leak Detection Pump: The LDP itself may be malfunctioning, causing the control circuit to register a high voltage condition, Wiring Issues: Damaged or corroded wiring connecting the LDP to the control module can lead to electrical problems, Faulty Control Module: The control module responsible for monitoring the LDP may be faulty, causing it to detect a high voltage condition.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P2402 2009 Toyota Camry Description

The P2402 diagnostic trouble code (DTC) for a 2009 Toyota Camry relates to the EVAP (Evaporative Emission Control) system. Specifically, it indicates a problem with the Leak Detection Pump Control Circuit being too high. The EVAP system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from being released into the atmosphere. The Leak Detection Pump (LDP) is a key component of this system, as it pressurizes and tests the integrity of the system to ensure there are no leaks.

OBDII Code P2402 2009 Toyota Camry - EVAP System Leak Detection Pump Control Circuit High
P2402 2009 Toyota Camry Code - EVAP System Leak Detection Pump Control Circuit High

Common Causes of P2402 2009 Toyota Camry

  1. Faulty Leak Detection Pump: The LDP itself may be malfunctioning, causing the control circuit to register a high voltage condition.
  2. Wiring Issues: Damaged or corroded wiring connecting the LDP to the control module can lead to electrical problems.
  3. Faulty Control Module: The control module responsible for monitoring the LDP may be faulty, causing it to detect a high voltage condition.
  4. Vacuum Leaks: Any leaks in the EVAP system can disrupt the pressure readings and trigger the P2402 code.
  5. Electrical Short: An electrical short in the control circuit can also cause the high voltage condition to be detected.

Symptoms of P2402 2009 Toyota Camry

  1. Check Engine Light: The most common symptom associated with the P2402 code is the illumination of the Check Engine Light on the vehicle's dashboard.
  2. Reduced Fuel Efficiency: A malfunction in the EVAP system can lead to increased fuel consumption as the engine may not be running optimally.
  3. Rough Idle: In some cases, a high voltage condition in the LDP control circuit can cause the engine to idle roughly or inconsistently.
  4. Failed Emissions Test: If the P2402 code is not addressed, it may result in the vehicle failing an emissions test due to increased emissions.

How to Fix P2402 2009 Toyota Camry

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and pinpoint the exact cause of the P2402 code.
  2. Inspect Wiring and Connections: Check the wiring and connections related to the LDP and control module for any damage or corrosion.
  3. Test the Leak Detection Pump: Test the functionality of the LDP to determine if it is operating correctly.
  4. Replace Faulty Components: Replace any faulty components such as the LDP, control module, or damaged wiring.
  5. Clear DTC and Test Drive: After making the necessary repairs, clear the DTC from the vehicle's computer and test drive to ensure the issue has been resolved.

Cost to Fix P2402 2009 Toyota Camry

The cost of repairing a P2402 code on a 2009 Toyota Camry can vary depending on the specific cause of the issue. In general, the cost of parts such as a new Leak Detection Pump or control module can range from $100 to $300. Labor costs at an auto repair shop typically range from $80 to $150 per hour, with the total repair time estimated at around 1-2 hours. Therefore, the total cost for resolving a P2402 code could be between $200 and $600, including parts and labor. It is advisable to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of the vehicle.

When is the Code Detected?

To determine leak criterion (Reference pressure), vacuum pump creates negative pressure in canister pump module through 0.02 inch orifice and pressure is measured. If the conditions are not met, Engine Control Module (ECM) the code will be set.

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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 2009 Toyota Camry Code

1. What are the common symptoms of OBDII code P2402 in a 2009 Toyota Camry?

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

2. What does the OBDII code P2402 "EVAP System Leak Detection Pump Control Circuit High" mean for a 2009 Toyota Camry?

- This code indicates a problem with the control circuit of the EVAP (evaporative emission) system's leak detection pump, which helps monitor and manage fuel vapors in the vehicle.

3. What are the possible causes of OBDII code P2402 in a 2009 Toyota Camry?

- Potential causes include a faulty leak detection pump, damaged wiring or connectors in the control circuit, a malfunctioning EVAP system pressure sensor, or a defective ECM (engine control module).

4. How can I diagnose the issue causing OBDII code P2402 in my 2009 Toyota Camry?

- Diagnosis typically involves checking the integrity of the wiring and connectors in the EVAP system, testing the leak detection pump and pressure sensor, and verifying proper ECM function using a scan tool.

5. Can I still drive my 2009 Toyota Camry with OBDII code P2402 present?

- 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 emissions system and ensure optimal performance.

6. How can I repair OBDII code P2402 in a 2009 Toyota Camry?

- Repair options may include replacing the leak detection pump, repairing or replacing damaged wiring or connectors, addressing issues with the pressure sensor, or reprogramming the ECM if needed.

7. Are there any DIY tips for addressing OBDII code P2402 in a 2009 Toyota Camry?

- DIYers can start by checking for loose or damaged wiring, ensuring proper connections, and inspecting the condition of the leak detection pump and pressure sensor. However, complex repairs may require professional assistance.

8. How much does it typically cost to repair OBDII code P2402 in a 2009 Toyota Camry?

- Repair costs can vary depending on the specific issue causing the code, the parts needed for replacement or repair, and labor charges. It is advisable to obtain quotes from reputable mechanics or dealerships.

9. Will resetting the OBDII code P2402 in a 2009 Toyota Camry make it go away permanently?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is crucial to diagnose and fix the root cause of the problem.

10. How often does OBDII code P2402 occur in a 2009 Toyota Camry?

- While the frequency of this specific code can vary, it is not uncommon in vehicles with aging EVAP systems or components. Regular maintenance and timely repairs can help prevent its occurrence.

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