VIAS Circuit Check

VIAS Circuit Check

Diagnosis Procedure

Step 1-2:

Step 3-5:

Step 6-10:

Component Inspection

VIAS CONTROL SOLENOID VALVE

With SDT
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform "VIAS SOL VALVE" in "Active test" mode.
4. Check air passage continuity and operation delay time under the following conditions.






Operation takes less than 1 second.

Without SDT
Check air passage continuity and operation delay time under the following conditions.






Operation takes less than 1 second.

VACUUM TANK
1. Disconnect vacuum hose connected to vacuum tank.






2. Connect a vacuum pump to the port (A) of vacuum tank.
3. Apply vacuum and make sure that vacuum exists at the port (B).