Closed Throttle Position Switch: Millenia
WARNING: This page is about a different car, the 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, 2001 Mazda MPV, and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
Closed throttle position switch is part of Throttle Position (TP) sensor. To test closed throttle position switch, check TP sensor continuity. See THROTTLE POSITION SENSOR (TP) in ON-VEHICLE ADJUSTMENTS article. Check TP sensor adjustment before replacing TP sensor.