G 3500 1 Ton Van V8-379 6.2L DSL VIN J FI (1992)
Fluid Pressure Sensor/Switch: Description and Operation
Pressure Switch Manifold
NOTE: Because different models and engine applications vary in wire colors, circuit numbers, and pin numbers, the above image is a typical example.
Refer to COMPUTERS AND CONTROL SYSTEMS/SCHEMATIC AND ROUTING DIAGRAMS for specific schematic applications.
PURPOSE:
The Pressure Switch Manifold (PSM) is a gear range sensing device used by the control module to sense what gear has been selected by the vehicle
operator. The PSM is located on the valve body and consists of five pressure switches combined into one unit.