Variable Tumble Control System (VTCS) Solenoid Valve
VARIABLE TUMBLE CONTROL SYSTEM (VTCS) SOLENOID VALVE INSPECTIONSimulation Test
1. Carry out the "VTCS Operation Inspection".
- If not as specified, perform the further inspection for the VTCS solenoid valve.
Airflow Inspection
NOTE: Perform the following test only as directed.
1. Remove the VTCS solenoid valve.
2. Inspect for the air flow inspection each port under the following condition.
- If as specified, replace the VTCS solenoid valve.
- If as specified but the "VTCS Operation Inspection" is failed, inspect evaporative hoses for improper routing, kinks or leakage, and inspect "Circuit Open/Short Inspection".
- If there is an open or short circuit, repair or replace wiring harnesses.
- If the above open or short circuit is okay, replace VTCS solenoid valve.
Circuit Open/Short Inspection
1. Disconnect the PCM connector.
2. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
3. Tighten the connector attaching screw.
Tightening torque
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}
4. Inspect for an open or short circuit in the following wiring harnesses by probing the applicable sensor and SST (104 Pin Breakout Box) terminals with ohmmeter leads.
Open circuit
- Power circuit (VTCS solenoid valve connector terminal A and main relay connector terminal D)
- Control circuit (VTCS solenoid valve connector terminal B and PCM connector terminal 19)
Short circuit
- Power circuit (VTCS solenoid valve connector terminal A and main relay connector terminal D to GND)
- Control circuit (VTCS solenoid valve connector terminal B and PCM connector terminal 19 to GND)
5. Reconnect the VTCS solenoid valve connector.
6. Reconnect the battery negative cable.