Pressure Regulator Control Solenoid Valve

1. Disconnect hose from solenoid. Blow through port "A". See Fig 1 . Air should flow from port "B". Remove connector from valve.
2. Apply battery voltage and ground to proper terminals. See Fig 1 . Blow through port "A". Air should flow through air filter.

Fig 1: Testing Pressure Regulator Control Solenoid Valve

Courtesy of MAZDA MOTORS CORP.