P3459 JEEP - Cylinder 8 Deactivation Control Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • 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

Tech notes

Although in some cases changing the engine oil may fix the problem, usually the Multi Displacement System Solenoid may need to replaced.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P3459 Jeep 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 P3459 Jeep - Cylinder 8 Deactivation Control Circuit Low - AutoCodes.com

Need more help?

Get the P3459 Jeep code diagnosed by a professional: Find a repair shop in your area

Related Information

P3459 JEEP Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P3459 Jeep code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧