AutoCodes – Scion – P2402 2005 Scion xB

P2402 2005 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 2005 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 2,479

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 2005 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 2005 Scion xB - Leak Detection Pump Stuck ON - AutoCodes.com — P2402 2005 Scion xB Code - Leak Detection Pump Stuck ON

What does this mean?

What are the Possible Causes of the DTC P2402 2005 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 2005 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 2005 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 2005 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 2005 Scion xB Code

1. What are the common symptoms of OBDII code P2402 in a 2005 Scion xB?

The common symptoms of code P2402 in a 2005 Scion xB include the check engine light illuminating on the dashboard and possible issues with the vehicle's emission control system.

2. What does the OBDII code P2402 on a 2005 Scion xB indicate?

Code P2402 on a 2005 Scion xB indicates that the Leak Detection Pump is stuck ON, which can lead to problems with the evaporative emission control system.

3. What are the possible causes of OBDII code P2402 in a 2005 Scion xB?

Possible causes of code P2402 in a 2005 Scion xB include a faulty Leak Detection Pump, a malfunctioning purge valve, damaged hoses or connections in the evaporative emission system, or a problem with the vehicle's onboard computer.

4. How serious is OBDII code P2402 in a 2005 Scion xB?

Code P2402 should be addressed promptly as it can lead to increased emissions, reduced fuel efficiency, and potential damage to the vehicle's emission control components if left unresolved.

5. Can I continue driving my 2005 Scion xB with OBDII code P2402?

It is not recommended to continue driving the vehicle with code P2402 present, as it can result in emission control system issues and may cause further damage if not addressed in a timely manner.

6. How can I diagnose OBDII code P2402 on a 2005 Scion xB?

Diagnosing code P2402 typically involves using an OBDII scanner to retrieve the code, inspecting the Leak Detection Pump, purge valve, hoses, and connections for any visible damage, and conducting further testing as needed.

7. What are some repair tips for addressing OBDII code P2402 in a 2005 Scion xB?

Repair tips for code P2402 may include replacing the faulty Leak Detection Pump, inspecting and repairing any damaged hoses or connections, checking and potentially replacing the purge valve, and clearing the code with an OBDII scanner after repairs are completed.

8. Can I reset OBDII code P2402 in a 2005 Scion xB by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is not a recommended method for resolving the underlying issue causing code P2402. It is best to diagnose and repair the problem to prevent the code from reoccurring.

9. How much does it typically cost to repair OBDII code P2402 in a 2005 Scion xB?

The cost of repairing code P2402 in a 2005 Scion xB can vary depending on the specific cause of the issue, the cost of parts, and labor rates. It is recommended to consult with a qualified mechanic for an accurate estimate.

10. Can a DIY enthusiast fix OBDII code P2402 in a 2005 Scion xB?

While some DIY enthusiasts may have the skills and tools to address code P2402, it is recommended to consult with a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.