P3491 Chevrolet (Cylinder No.12) Deactivation / Intake Valve Control Circuit Low

P3491 Chevrolet (Cylinder No.12) Deactivation / Intake Valve Control Circuit Low

OBD Code:
System:
Subsystem: 		 P3491 Chevrolet – (ASE)
 Powertrain
 Auxiliary Emission Controls

Trouble Code Description: (Cylinder No.12) Deactivation / Intake Valve Control Circuit Low


Location:
Analysis:

Possible Causes:
 cylinder 12
 End of Range – Circuit Lower Than Expected

 

Tech description: