DIAGNOSIS AND TESTING

The Multi Displacement System has the following detectible issues:

  • Solenoid circuit
  • Fail to deactivate a cylinder(s)
  • Fail to reactivate a cylinder(s)
  • Low oil pressure

CONDITION
  		 POSSIBLE CAUSES
  		 CORRECTION
  
MDS does not activate
  		 1. Low oil pressure
  		 1. Check for proper oil pressure
  
2. Bad oil temp sensor
  		 2. Replace oil temp sensor
  		  
  3. Malfunctioning MDS Solenoid
  		 3. Replace Solenoid
  
  4. Malfunctioning MDS Tappet
  		 4. Replace Tappet
  
MDS Does Not Deactivate
  		 1. Low oil pressure
  		 1. Check for proper oil pressure
  
2. Bad oil temp sensor
  		 2. Replace oil temp sensor
  		  
  3. Malfunctioning MDS Solenoid
  		 3. Replace Solenoid
  
  4. Malfunctioning MDS Tappet
  		 4. Replace Tappet