VARIABLE DYNAMIC EFFECT INTAKE-AIR (VDI) SOLENOID VALVE INSPECTION

1. Disconnect the negative battery cable.

2. Remove the VDI solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)

3. Inspect for airflow with the steps in the table below.

• If it is normal, inspect related wiring harnesses.

• If there is any malfunction, replace the VDI solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)

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.

– VDI solenoid valve terminal B (harness-side) and PCM terminal 1W

– VDI solenoid valve terminal A (harness-side) and main relay terminal C (harness-side)

Short circuit

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

– VDI solenoid valve terminal B (harness-side) and body GND

– VDI solenoid valve terminal A (harness-side) and power supply