Connect GDS to Data Link Connector(DLC).
Ignition switch "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 VMI to GDS and set up an oscilloscope as follow (2-channel);
Channel A (+) : Pin No. 1 (Power) terminal of VIS Solenoid Valve.
Channel A (-) : Ground
Channel B (+) : Pin No. 2 (Control) terminal of VIS Solenoid Valve.
Channel B (-) : Ground
Ignition switch "ON" & Engine "ON"
Testing Condition : Idle to Acceleration(W.O.T).
Specification : Refer to Figure below
Fig.1) VIS Solenoid Valve Control Waveform at Idle.
Fig.2) VIS Solenoid Valve Control Waveform at High Acceleration.
Is the parameter displayed within specification?
![]() | ▶ Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors ( and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage. ▶ Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Go to "Wiring Inspection" procedure. |