DTC P0660 Intake Manifold Tuning Valve Control Circuit/Open (Bank 1): DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition	Possible Cause
DTC Strategy	Check VIS	Poor connection Open or short in VIS circuit Faulty VIS Faulty PCM
Enable condition	After 0.5 sec under conditions below Engine works 11V ≤ Battery voltage ≤ 16V
Threshold value	Open or short
Diagnosis time	Continuous (More than 5 seconds failure for every 10 seconds test)
MIL ON condition	2 driving cycles