G 1500 1/2 Ton Van V6-4.3L VIN W (1997)
Brake Fluid Pressure Sensor/Switch: Description and Operation
Fluid Flow Alarm Switch
The flow switch senses the volume of fluid supplied from the power steering pump. When it senses fluid flow that is inadequate, it signals the alarm
module. The flow switch is located in the power steering pressure pipe near the pump.
