Mazda 6 manuals

Mazda 6 Service Manual: Variable air duct (vad) control solenoid valve inspection (l3)

Mazda 6 Service Manual / Fuel and emission control systems / Intake-air system / Variable air duct (vad) control solenoid valve inspection (l3)

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

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



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

- VAD control solenoid valve terminal B (harness-side) and PCM terminal 4C

- VAD control solenoid valve terminal A (harness-side) and main relay terminal C (harness-side)

Short circuit

- VAD control solenoid valve terminal B (harness-side) and body GND

- VAD control solenoid valve terminal A (harness-side) and power supply

Variable air duct (vad) shutter valve inspection (l3)
1. Remove the air cleaner case. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 2. Disconnect the vacuum hose from the VAD shutter valve actuator. 3. Connect a vacuum pump to the VAD shutter valve act ...

Variable air duct (vad) check valve (one-way) inspection (l3)
1. Remove the VAD check valve (one-way). (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION) 2. Blow through A and verify that air flows from B. 3. Blow through B and verify that air does not flow from A ...

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