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.

If not as specified, replace the VAD 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.)

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.

- 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

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

- 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 ...

Other materials:

Mazda 6 Service Manual: Pcm removal/installation
Note For replace the PCM, Setup the WDS and perform the PCM configuration. (See PCM CONFIGURATION.) 1. Disconnect the negative battery cable. 2. For R.H.D, perform the following procedures. (1) Remove the front side trim (left-side). (2) Partially peel back the flower covering. 3 ...

Mazda 6 Service Manual: Inspection of dtcs for operation mode
Note The cruise set indicator light will illuminate for 3 seconds? when operation mode is on. If the cruise set indicator light does not illuminate for 3 seconds (Operation mode is not on)? the following may be the cause of the malfunction: - Cruise actuator ignition power suppl ...