AutoCodes – Volkswagen – P2404 Volkswagen

P2404 Volkswagen Code - Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance

Quick Answer

The Engine Control Module (ECM) checks power consumption on the Leak Detection Pump. Common causes include Faulty Leak Detection Pump, Leak Detection Pump harness is open or shorted, Leak Detection Pump 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: P2404 Volkswagen indicates Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance.
Common causes: Common causes include Faulty Leak Detection Pump, Leak Detection Pump harness is open or shorted, Leak Detection Pump 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 16,962

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2404 Volkswagen Description

The Engine Control Module (ECM) checks power consumption on the Leak Detection Pump. The Diagnostic Trouble Code (DTC) can be diagnosed when the leak diagnostic system is run. A diagnostic trouble code is stored if the current consumption of the pump in the Leak Detection Pump unit varies too much during the reference phase.

OBDII Code P2404 Volkswagen - Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance - AutoCodes.com — P2404 Volkswagen Code - Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2404 Volkswagen?

Faulty Leak Detection Pump
Leak Detection Pump harness is open or shorted
Leak Detection Pump circuit poor electrical connection
Faulty Purge Valve
Clogged or damaged charcoal canister

How to Fix the DTC P2404 Volkswagen?

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 P2404 Volkswagen 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.

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Need more information on how to fix the P2404 Volkswagen code? Get Access to Factory Service Manuals

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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 P2404 Volkswagen Code

1. What are common symptoms of OBDII code P2404 in a Volkswagen?

- Common symptoms include the Check Engine Light illuminating, decreased fuel efficiency, and possible issues with the vehicle's emissions system.

2. What could cause the OBDII code P2404 to trigger in a Volkswagen?

- The code P2404 is typically triggered by faults in the evaporative emission system, such as a leak in the system or a malfunctioning leak detection pump sensor circuit.

3. How serious is the OBDII code P2404 in a Volkswagen?

- While the code P2404 may not cause immediate drivability issues, it is important to address it promptly to ensure proper vehicle performance and to comply with emissions regulations.

4. Can I continue driving my Volkswagen with the OBDII code P2404?

- It is generally safe to drive the vehicle for a short period with the code P2404, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further damage.

5. How can I diagnose the OBDII code P2404 in my Volkswagen?

- Diagnosing the code P2404 typically involves using an OBDII scanner to read the code, inspecting the evaporative emission system for leaks, and testing the leak detection pump sensor circuit.

6. What are some repair tips for fixing the OBDII code P2404 in a Volkswagen?

- Repair tips may include checking and repairing any leaks in the evaporative emission system, replacing the leak detection pump sensor if faulty, and clearing the code with an OBDII scanner.

7. Is it possible to reset the OBDII code P2404 in a Volkswagen without fixing the underlying issue?

- While it is possible to clear the code temporarily, the Check Engine Light is likely to return if the root cause of the code P2404 is not addressed.

8. How much does it typically cost to repair the OBDII code P2404 in a Volkswagen?

- The cost of repairing the code P2404 can vary depending on the exact cause of the issue, but it may involve replacing components in the evaporative emission system or repairing wiring issues.

9. Can the OBDII code P2404 in a Volkswagen cause other problems if left untreated?

- If left untreated, the code P2404 may lead to increased emissions, decreased fuel efficiency, and potential issues with passing emissions tests in regions with strict regulations.

10. Are there any preventative maintenance steps to avoid the OBDII code P2404 in a Volkswagen?

- Regularly inspecting the evaporative emission system for leaks, ensuring the gas cap is properly sealed, and following the manufacturer's recommended maintenance schedule can help prevent the code P2404 from occurring.