Control Circuit Inspection

Measure voltage between control terminal of the oil control valve harness connector and chassis ground.
Specification : Approx. 3~4V

Fig 1: Signal Waveform Of Oil Control Valve
Courtesy of KIA MOTORS AMERICA, INC.

NOTE: Signal waveform in control circuit with ignition ON & Engine OFF

Fig 2: Measuring Voltage Between Control Terminal Of Oil Control Valve Harness Connector & Chassis Ground
Courtesy of KIA MOTORS AMERICA, INC.
Is voltage within specification?
YES
- Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.
NO
- Repair short to ground in control circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.