VAD Shutter Valve Operation

Fig 1: VAD Shutter Valve Operation Specifications

Courtesy of MAZDA MOTORS CORP.

(1) Verify that DTC P1410 is not displayed.
- If DTC P1410 is displayed, perform DTC inspection. (See DTC TABLE .)
(2) Inspect VAD control solenoid valve. (See VARIABLE AIR DUCT (VAD) CONTROL SOLENOID VALVE INSPECTION .)
- If the VAD control solenoid valve is not okay, replace VAD control solenoid valve.
- If the VAD control solenoid valve is okay, inspect the following:
  - Vacuum hose looseness or damage
  - Vacuum chamber crack or damage
  - Shutter valve actuator. (See VARIABLE AIR DUCT (VAD) SHUTTER VALVE INSPECTION .)
  - Shutter valve stuck open or close