Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

The Transmission Fluid Pressure Switch 4 is part of the control solenoid valve assembly which has no serviceable parts. The Transmission Control Module supplies a signal circuit to the Transmission Fluid Pressure Switch 4. The Transmission Fluid Pressure Switch 4 has an internal case ground. Transmission Fluid Pressure Switch 4 is normally closed or LOW. When oil pressure is present at the Transmission Fluid Pressure Switch 4, the switch is open or HIGH. The normally LOW pressure control solenoid 5 controls pressure to the 1-2-3-4 clutch regulator valve. The Transmission Control Module monitors the Transmission Fluid Pressure Switch 4 to determine the position of the 1-2-3-4 clutch regulator valve. When the 1-2-3-4 clutch is commanded OFF, pressure is present on the Transmission Fluid Pressure Switch 4. When the 1-2-3-4 clutch is commanded ON, the 1-2-3-4 clutch regulator valve moves and pressure to the Transmission Fluid Pressure Switch is exhausted through the 1-2-3-4 clutch regulator valve.