Solenoid Valve

Remove solenoid valve. Blow air through port "B". See Fig 1 . Ensure air flows from valve air filter. Connect 12 volts and a ground to solenoid valve terminals. Blow air through valve port "B", and ensure air flows from port "A". Replace solenoid valve as necessary.

Fig 1: Testing Solenoid Valve

Courtesy of MAZDA MOTORS CORP.