AutoCodes – Dodge – P3403 Dodge

P3403 Dodge Code - Cylinder 1 Deactivation Control Circuit Low

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
P3403 Dodge indicates Cylinder 1 Deactivation Control Circuit Low.
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 1,586
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 P3403 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 P3403 Dodge - Cylinder 1 Deactivation Control Circuit Low - AutoCodes.com
P3403 Dodge Code - Cylinder 1 Deactivation Control Circuit Low

What are the Possible Causes of the DTC P3403 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 P3403 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 P3403 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 P3403 Dodge Code

1. What does the OBDII code P3403 mean on a Dodge?

P3403 indicates a problem with the Cylinder 1 Deactivation Control Circuit, specifically that the circuit is operating at a lower voltage than expected.

2. What are the common symptoms of code P3403 on a Dodge?

Symptoms may include reduced engine performance, poor fuel efficiency, a rough idle, the Check Engine Light illuminating, and possible misfires.

3. What causes the P3403 code on a Dodge?

Common causes include a faulty cylinder deactivation solenoid, damaged wiring or connectors in the deactivation circuit, low oil pressure, or issues with the powertrain control module (PCM).

4. Can low oil pressure trigger code P3403 on a Dodge?

Yes, low oil pressure can affect the cylinder deactivation system's performance and trigger this code.

5. How do you diagnose code P3403 on a Dodge?

Diagnosis involves checking the cylinder deactivation solenoid, inspecting wiring and connectors, verifying proper oil pressure, and using a scan tool to monitor the circuit's performance.

6. Can I drive my Dodge with code P3403 active?

While the vehicle may still be drivable, prolonged operation with this code can lead to engine damage or reduced performance. It's best to address the issue promptly.

7. How is code P3403 typically repaired on a Dodge?

Repairs may include replacing the cylinder deactivation solenoid, repairing damaged wiring or connectors, addressing low oil pressure, or reprogramming the PCM if needed.

8. Is an oil change necessary to fix P3403 on a Dodge?

An oil change may help if the issue is related to poor oil quality or low oil pressure, which can affect the cylinder deactivation system.

9. How much does it cost to fix code P3403 on a Dodge?

Repair costs can range from $100 to $500 or more, depending on whether the solenoid, wiring, or other components need replacement.

10. Can a bad PCM cause code P3403 on a Dodge?

Yes, a malfunctioning PCM can fail to properly control the cylinder deactivation system and trigger this code, though this is less common.

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