AutoCodes – Dodge – P3412 Dodge

P3412 Dodge Code - Cylinder 2 Deactivation Control Circuit High

Quick Answer

When all the criteria has been met,power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. Common causes include Low oil pressure, Restricted oil passage, Engine mechanical condition. 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
P3412 Dodge indicates Cylinder 2 Deactivation Control Circuit High.
Common causes
Common causes include Low oil pressure, Restricted oil passage, Engine mechanical condition.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,417
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 05, 2019
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Code P3412 Dodge Description

When all the criteria has been met,power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. By actuating the solenoid, oil pressure is raised to the pair of lifter that coincide with each particular solenoid. The oil pressure pushes in the locking pins that allows the lifter to collapse, decoupling the valves and camshafts.
OBDII Code P3412 Dodge - Cylinder 2 Deactivation Control Circuit High - AutoCodes.com
P3412 Dodge Code - Cylinder 2 Deactivation Control Circuit High

What are the Possible Causes of the DTC P3412 Dodge?

  • Low oil pressure
  • Restricted oil passage
  • Engine mechanical condition
  • Faulty Multiple Displacement System (MDS) Solenoid
  • Multiple Displacement System (MDS) Solenoid harness is open or shorted
  • Multiple Displacement System (MDS) Solenoid circuit poor electrical connection

How to Fix the DTC P3412 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P3412 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 P3412 Dodge Code

1. What does the OBDII code P3412 mean on a Dodge?

P3412 indicates an issue with the Cylinder 2 Deactivation Control Circuit, specifically a high voltage condition.

2. What are the common symptoms of code P3412 in a Dodge?

Symptoms may include reduced engine performance, poor fuel economy, rough idling, or the check engine light turning on.

3. What causes the P3412 code to appear in a Dodge vehicle?

Common causes include a faulty solenoid, damaged wiring or connectors in the Cylinder 2 Deactivation Circuit, or a problem with the engine control module (ECM).

4. Can I drive my Dodge with the P3412 code active?

Driving with this code active is possible but not recommended, as it could lead to further engine damage or reduced performance.

5. How do you diagnose the P3412 code on a Dodge?

Diagnosis typically involves using a scan tool to confirm the code, inspecting the wiring and connectors, and testing the cylinder deactivation solenoid for proper operation.

6. How can the P3412 code be fixed on a Dodge?

Repairs may involve replacing a faulty solenoid, repairing or replacing damaged wiring, or reprogramming the ECM if needed.

7. How much does it cost to repair the P3412 code on a Dodge?

Repair costs vary but typically range from $100 to $300, depending on whether the issue is a simple wiring repair or a solenoid replacement.

8. Can low oil pressure cause the P3412 code in a Dodge?

Yes, low oil pressure can affect the cylinder deactivation system, potentially triggering the P3412 code.

9. Does the P3412 code affect fuel efficiency in a Dodge?

Yes, since cylinder deactivation improves fuel economy, a malfunction in this system can lead to increased fuel consumption.

10. Can clearing the P3412 code fix the problem in a Dodge?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.

Discuss the causes and fixes for P3412 Dodge OBDII Code

  • I have A Engine "P3412" On My 2005 Dodge Magnum With The 5.7 Hemi, Has Anyone Ever Had This Code Come up before?? & What did You have To Do To Resolve The Issue?? Thank You In Advance

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