VARIABLE INTAKE-AIR SYSTEM (VIS) CONTROL SOLENOID VALVE INSPECTION [L3]

1. Remove the VIS control solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF, L3].)

2. Inspect airflow between the ports under the following conditions.

• If not as specified, replace the VIS control solenoid valve.

• If as specified, carry out the "Circuit Open/Short Inspection".

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [LF, L3].)

2. Inspect the following wiring harness for open or short (continuity check).

Open circuit

• If there is no continuity, the circuit is open. Repair or replace the harness.

- VIS control solenoid valve terminal A (harness-side) and PCM terminal 4R

- VIS control solenoid valve terminal B (harness-side) and main relay terminal C (harness-side)

Short circuit

• If there is continuity, the circuit is shorted. Repair or replace the harness.

- VIS control solenoid valve terminal A (harness-side) and body GND

- VIS control solenoid valve terminal B (harness-side) and power supply