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Home >> Mazda >> 2004 >> 6 L4-2.3L >> Repair and Diagnosis >> Powertrain Management >> Fuel Delivery and Air Induction >> Variable Induction System >> Variable Induction Control Solenoid >> Testing and Inspection >> Variable Intake-Air System (VIS) Control Solenoid Valve Inspection
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Variable Intake-Air System (VIS) Control Solenoid Valve Inspection

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

1. Remove the VIS control solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)







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 REMOVAL/INSTALLATION.)




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

Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the harness.
- VIS control solenoid valve terminal B (harness-side) and PCM terminal 4R
- VIS control solenoid valve terminal A (harness-side) and main relay terminal C (harness-side)

Short circuit
- If there is continuity, there is a short circuit. Repair or replace the harness.
- VIS control solenoid valve terminal B (harness-side) and body GND
- VIS control solenoid valve terminal A (harness-side) and power supply
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