P2402 Lexus Code - Evaporative Emission Leak Detection Pump Stuck ON
Quick Answer
The P2402 diagnostic trouble code for Lexus vehicles indicates that the Evaporative Emission Leak Detection Pump is stuck ON. Common causes include Faulty Evaporative Emission Leak Detection Pump, Stuck valve within the pump, Wiring issues or electrical faults. 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 Lexus indicates Evaporative Emission Leak Detection Pump Stuck ON.
- Common causes
- Common causes include Faulty Evaporative Emission Leak Detection Pump, Stuck valve within the pump, Wiring issues or electrical faults.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2402 Lexus Description
The P2402 diagnostic trouble code for Lexus vehicles indicates that the Evaporative Emission Leak Detection Pump is stuck ON. This system is a key component of the vehicle's evaporative emissions control system, which is designed to prevent harmful fuel vapors from being released into the atmosphere. The leak detection pump is responsible for detecting leaks in the system by pressurizing it and monitoring for any drop in pressure that would indicate a leak. When the pump is stuck ON, it means that it is continuously running, which can lead to various issues within the system.
Common Causes of P2402 Lexus
- Faulty Evaporative Emission Leak Detection Pump
- Stuck valve within the pump
- Wiring issues or electrical faults
- Corrosion or damage to pump components
- Malfunctioning control module
Symptoms of P2402 Lexus
- Check engine light illuminated on the dashboard
- Failed emissions test
- Decreased fuel efficiency
- Rough idling or engine stalling
- Strong fuel odor near the vehicle
How to Fix P2402 Lexus
- Perform a diagnostic scan to confirm the P2402 code and pinpoint the exact issue with the Evaporative Emission Leak Detection Pump.
- Inspect the pump, valves, and wiring for any visible damage or corrosion.
- Replace the faulty pump or any damaged components, such as valves or wiring harnesses.
- Clear the diagnostic trouble codes and reset the check engine light.
- Perform a final test to ensure that the pump is functioning correctly and that the code does not reappear.
Cost to Fix P2402 Lexus
The cost of repairing a P2402 code for a Lexus vehicle can vary depending on the specific model and the extent of the damage. On average, the parts for this repair can range from $100 to $300, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue typically falls within the range of $200 to $500. It is important to note that these are rough estimates, and actual costs may vary based on the location of the repair shop, the technician's experience, and any additional repairs that may be necessary. It is recommended to obtain quotes from multiple auto repair shops to ensure a competitive price for the repair.
Need more information about the P2402 Lexus code?
Need more information on how to fix the P2402 Lexus code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2402 Lexus code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2402 Lexus Code
What does the OBDII code P2402 mean for a Lexus?
P2402 indicates that the Evaporative Emission Leak Detection Pump is stuck in the "ON" position, causing the vehicle's emissions system to malfunction.
What are the symptoms of code P2402 in a Lexus?
Symptoms may include an illuminated check engine light, decreased fuel efficiency, and potential difficulty passing an emissions test.
What causes the P2402 code in a Lexus?
Common causes include a faulty leak detection pump, damaged wiring or connectors, a defective control module, or issues with the EVAP system components.
Can I drive my Lexus with the P2402 code?
While the car may still be drivable, it’s best to address the issue promptly to avoid further damage to the EVAP system and ensure compliance with emissions standards.
How do I diagnose the P2402 code in a Lexus?
Diagnosis involves scanning for additional codes, inspecting the leak detection pump and associated wiring, and testing the pump for proper function using a multimeter.
How do I fix the P2402 code in a Lexus?
Repairs may include replacing the leak detection pump, repairing damaged wiring or connectors, and resetting the OBDII system with a scan tool.
What is the cost to repair the P2402 code in a Lexus?
Repair costs vary but may range from $150 to $500, depending on whether the leak detection pump needs replacement or if wiring repairs are required.
Can a loose gas cap cause the P2402 code?
No, a loose gas cap typically triggers codes like P0455 or P0456. P2402 specifically relates to the leak detection pump.
How do I prevent the P2402 code from recurring?
Regularly inspect the EVAP system for damage, use high-quality replacement parts, and keep up with routine vehicle maintenance.
Does the P2402 code affect emissions testing?
Yes, the code may cause your Lexus to fail an emissions test due to a malfunction in the EVAP system.
Discuss the causes and fixes for P2402 Lexus OBDII Code
Code P2402 Lexus comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.