HVAC Pressure Switch. 1998 Mazda 626 Engine: 2.0L L4; High Pressure Cut-Out Switch | For Pigtail Use 1711497;. 1998 Mazda 626 Engine: 2.5L V6; High Pressure Cut-Out Switch | For Pigtail Use 1711497;. 1999 Mazda 626 Engine: 2.0L L4; High Pressure Cut-Out Switch | For Pigtail Use 1711497;.