K 3500 Truck 4WD V8-393 6.5L DSL Turbo (1993)
Fluid Pressure Sensor/Switch: Description and Operation
Fluid Pressure Switch Assembly Circuit
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.
