Variable Tumble Control System (VTCS) Operation Inspection
Variable Tumble Control System (VTCS) Operation Inspection1. Connect the WDS or equivalent to the DLC-2.
2. Access ECT PID.
3. Verify that ECT PID is between 63°C {145°F} and 67°C {152°F}.
4. Start the engine.
5. Inspect rod operation under the given conditions:
- If the rod operation is not specified, inspect as follows:
1. Verify that DTC No. P2009 or P2010 is not displayed.
- If DTC No. P2009 or P2010 are shown, perform DTC inspection. (See DTC TABLE. Diagnostic Trouble Code Descriptions)
2. Inspect VTCS control solenoid valve.
- If the VTCS control solenoid valve is not okay, replace VTCS control solenoid valve.
- If the VTCS control solenoid valve is okay, inspect the following:
- Vacuum hose and vacuum chamber for looseness or damage
- Shutter valve actuator (See VARIABLE TUMBLE CONTROL SYSTEM (VTCS) SHUTTER VALVE ACTUATOR INSPECTION.)
- Shutter valve stuck open or closed.