AutoCodes – Scion – P2402 2006 Scion xB

P2402 2006 Scion xB Code - Leak Detection Pump Stuck ON

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 2006 Scion xB indicates Leak Detection Pump Stuck ON.
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 6,026

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 Jul 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2402 2006 Scion xB 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. To determine the leak criterion (Reference pressure), a vacuum pump creates negative pressure in the canister pump module through 0.02 inch orifice and pressure is measured. If the conditions are not met, the Engine Control Module the code will be set.

OBDII Code P2402 2006 Scion xB - Leak Detection Pump Stuck ON - AutoCodes.com — P2402 2006 Scion xB Code - Leak Detection Pump Stuck ON

What does this mean?

What are the Possible Causes of the DTC P2402 2006 Scion xB?

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 2006 Scion xB?

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 2006 Scion xB 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 2006 Scion xB 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 2006 Scion xB Code

1. What are the common symptoms of OBDII code P2402 in a 2006 Scion xB?

- The common symptoms include the check engine light illuminating on the dashboard and potential issues with the vehicle's emissions system.

2. What does the OBDII code P2402 indicate in a 2006 Scion xB?

- The code P2402 indicates that the Leak Detection Pump (LDP) in the vehicle is stuck in the ON position, which can affect the proper functioning of the emissions system.

3. What are the possible causes of the Leak Detection Pump being stuck ON in a 2006 Scion xB?

- The common causes of the LDP being stuck ON include a faulty LDP, damaged wiring or connectors, or a problem with the vacuum lines connected to the LDP.

4. How can I diagnose the issue causing OBDII code P2402 in my 2006 Scion xB?

- Diagnosing the issue may involve visually inspecting the LDP and its connections, checking for any damaged wiring, and using a scan tool to monitor the LDP's activation.

5. Can I continue driving my 2006 Scion xB with OBDII code P2402 present?

- It is not recommended to continue driving the vehicle with the code P2402 present, as it can lead to increased emissions and potential damage to the emissions system components.

6. How can I repair OBDII code P2402 in my 2006 Scion xB?

- Repairing the code P2402 may involve replacing the Leak Detection Pump, repairing any damaged wiring or connectors, or addressing any vacuum leaks in the system.

7. Is it possible to reset OBDII code P2402 in a 2006 Scion xB without fixing the underlying issue?

- While it is possible to clear the code temporarily, it will likely reappear until the root cause of the problem, such as a stuck LDP, is properly addressed.

8. Are there any DIY tips for addressing OBDII code P2402 in a 2006 Scion xB?

- DIY tips may include checking and cleaning the LDP and its connections, inspecting for any visible damage, and ensuring all vacuum lines are properly connected.

9. How much does it typically cost to repair OBDII code P2402 in a 2006 Scion xB?

- The cost of repairing code P2402 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor, excluding any additional diagnostic fees.

10. Can OBDII code P2402 in a 2006 Scion xB affect the vehicle's performance?

- While the code P2402 may not directly impact the vehicle's performance, ignoring the issue can lead to increased emissions and potential long-term damage to the emissions system.