AutoCodes – Hyundai – P2400 Hyundai

P2400 Hyundai Code - Evaporative Emission System Leak Detection Pump Control Circuit/Open

Quick Answer

The DM-TL (Diagnostic Module Tank Leakage) is used to monitor the evaporative system for leaks. Common causes include Faulty Diagnostic Module Tank Leakage (DM-TL), Diagnostic Module Tank Leakage harness is open or shorted, Diagnostic Module Tank Leakage 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: P2400 Hyundai indicates Evaporative Emission System Leak Detection Pump Control Circuit/Open.
Common causes: Common causes include Faulty Diagnostic Module Tank Leakage (DM-TL), Diagnostic Module Tank Leakage harness is open or shorted, Diagnostic Module Tank Leakage 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 494

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 Oct 15, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2400 Hyundai Description

The DM-TL (Diagnostic Module Tank Leakage) is used to monitor the evaporative system for leaks. The diagnostic module consists of an air filter, an electrically driven air pump, a change-over valve, and a 0.02-inch orifice for reference measurement. Heated type Module applied to improved Leakage Detection Module. Using the heated DM-TL can completely eliminate the humidity influence. So, the Leakage detection never stopped caused of the current fluctuation (due to dew effects at extreme high humidity). The Powertrain Control Module (PCM) sets Diagnostic Trouble Code (DTC) P2400 if the PCM detects that the DM-TL Pump motor control line is open or disconnected.

OBDII Code P2400 Hyundai - Evaporative Emission System Leak Detection Pump Control Circuit/Open - AutoCodes.com — P2400 Hyundai Code - Evaporative Emission System Leak Detection Pump Control Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P2400 Hyundai?

Faulty Diagnostic Module Tank Leakage (DM-TL)
Diagnostic Module Tank Leakage harness is open or shorted
Diagnostic Module Tank Leakage circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2400 Hyundai?

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 P2400 Hyundai 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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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 P2400 Hyundai Code

1. What are the common symptoms of OBDII code P2400 in a Hyundai related to the evaporative emission system leak detection pump control circuit/open?

- Common symptoms include the illumination of the check engine light, decreased fuel efficiency, and potential issues with passing emissions tests.

2. What are the possible causes of the OBDII code P2400 in a Hyundai?

- Causes may include a faulty leak detection pump, damaged wiring or connectors in the control circuit, a loose gas cap, or a leak in the evaporative emission system.

3. How can I diagnose the OBDII code P2400 in my Hyundai?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the integrity of the gas cap, checking the wiring and connectors in the control circuit, and testing the leak detection pump for proper function.

4. Can I continue driving my Hyundai with the OBDII code P2400 present?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential damage to the evaporative emission system and ensure optimal fuel efficiency.

5. What are some DIY repair tips for fixing the OBDII code P2400 in a Hyundai?

- DIY repair tips may include checking and tightening the gas cap, inspecting the wiring and connectors for any damage, and replacing the leak detection pump if necessary.

6. How much does it typically cost to repair the OBDII code P2400 in a Hyundai at a dealership or auto repair shop?

- The cost of repair can vary depending on the exact cause of the code and the labor rates of the service provider. It is advisable to obtain quotes from different shops for comparison.

7. Is the OBDII code P2400 in a Hyundai covered under any warranties or recalls?

- Depending on the model year and warranty status of the vehicle, the repair for this code may be covered under the manufacturer's warranty or subject to a recall. It is recommended to check with a Hyundai dealership for more information.

8. Are there any preventative measures to avoid triggering the OBDII code P2400 in a Hyundai?

- Regularly checking and tightening the gas cap, avoiding overfilling the fuel tank, and ensuring the evaporative emission system components are properly maintained can help prevent issues leading to this code.