VIS Operation Inspection
VIS Operation Inspection1. Start the engine.
2. Inspect the rod operation under the given condition:
- If the rod operation is not as specified, inspect as follows:
1. Stop the engine.
2. Connect WDS or equivalent to the DLC-2.
3. Verify that DTC P0661 or P0662 is not displayed.
- If DTC P0661 or P0662 is shown, perform DTC inspection. (See DTC TABLE. Diagnostic Trouble Code Descriptions)
4. Inspect VIS control solenoid valve.
- If the VIS control solenoid valve is not okay, replace VIS control solenoid valve.
- If the VIS control solenoid valve is okay, inspect the following:
- Vacuum hose and vacuum chamber for looseness or damage
- Shutter valve actuator (See VARIABLE INTAKE-AIR SYSTEM (VIS) SHUTTER VALVE ACTUATOR INSPECTION.)
- Shutter valve stuck open or closed.