Connect GDS to Data Link Connector(DLC).
Ignition "ON"
Monitor "Diagnostic Trouble Codes(DTC)" with GDS.
Is DTC status displayed as Present?
![]() | ▶ Go to "Monitor GDS Data" procedure. |
![]() | ▶ Go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Connect DATA Link Connector(DLC) to GDS.
Connect VMI to GDS and select oscilloscope.(2 Channel)
Channel A (+) : Pin No. 1(Control) connector (On VGT Contorl Solenoid Valve Side)
Channel A (-) : Ground
Ignition Switch "ON" & Engine "ON"
Check "Current Data" with GDS.
Inspection Condition : Idle & Acceleration
Specification : Refer to Fig. 1
Fig.1 ) VGT Actuator Sensor Data at Idle & Duty Control
Fig.2 ) VGT Actuator Sensor Data at Acceleration & Duty Control
Is the measured value within specification?
![]() | ▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure. |
![]() | ▶ Go to "Terminal & Connector Inspection" procedure. |