AutoCodes – Dodge – P2406 Dodge

P2406 Dodge Code - Evaporative Emission System Leak Detection Pump Sense Circuit High

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: P2406 Dodge indicates Evaporative Emission System Leak Detection Pump Sense Circuit High.
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 3,714

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 P2406 Dodge 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 P2406 Dodge - Evaporative Emission System Leak Detection Pump Sense Circuit High - AutoCodes.com — P2406 Dodge Code - Evaporative Emission System Leak Detection Pump Sense Circuit High

What does this mean?

What are the Possible Causes of the DTC P2406 Dodge?

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 P2406 Dodge?

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 P2406 Dodge 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 P2406 Dodge Code

1. What are the common symptoms of OBDII code P2406 in a Dodge vehicle?

- Common symptoms include the illumination of the Check Engine Light on the dashboard, potential fuel economy issues, and difficulty starting the engine.

2. What is the main cause of OBDII code P2406 (Evaporative Emission System Leak Detection Pump Sense Circuit High) in Dodge vehicles?

- The main cause is usually a malfunction in the Evaporative Emission System Leak Detection Pump Sense Circuit, leading to a high voltage reading.

3. Can a loose gas cap trigger OBDII code P2406 in a Dodge vehicle?

- While a loose gas cap can sometimes cause a related code, P2406 specifically points to issues with the Evaporative Emission System Leak Detection Pump Sense Circuit.

4. How can I diagnose the root cause of OBDII code P2406 in my Dodge vehicle?

- Proper diagnosis typically involves using an OBDII scanner to retrieve the trouble code, inspecting the Evaporative Emission System components for any visible damage, and testing the circuit for electrical issues.

5. Is it safe to continue driving with OBDII code P2406 present in my Dodge vehicle?

- It is generally not recommended to continue driving with this code active, as it can negatively impact the vehicle's performance and emissions output.

6. Can I repair OBDII code P2406 in my Dodge vehicle on my own?

- Depending on your skill level, you may be able to address this issue on your own by checking the system for leaks, ensuring proper connections, and replacing any faulty components.

7. How much does it typically cost to repair OBDII code P2406 in a Dodge vehicle?

- The cost of repair can vary based on the exact cause of the code, but it may range from $100 to $300 for parts and labor at a dealership or mechanic.

8. Are there any DIY tips for addressing OBDII code P2406 in a Dodge vehicle?

- DIY tips include inspecting the gas cap for proper sealing, checking the hoses and connections in the Evaporative Emission System, and resetting the code to see if it returns.

9. Will OBDII code P2406 cause my Dodge vehicle to fail an emissions test?

- Yes, having this code active may cause your vehicle to fail an emissions test, as it indicates a problem with the Evaporative Emission System, which is critical for emission control.

10. How long does it take to repair OBDII code P2406 in a Dodge vehicle?

- The repair time can vary depending on the exact cause of the code and the availability of parts, but it typically takes a few hours to a full day to diagnose and fix the issue.