Cherokee 2WD L4-150 2.5L VIN H TBI (1988)
Brake Fluid Level Sensor/Switch: Description and Operation
Fig. 12 Boost Pressure Differential Switch Circuitry
Boost Pressure Differential And Low Fluid Switch Locations
FLUID LEVEL SWITCH
This switch is a reed switch located in the master cylinder reservoir and is connected to the Electronic Control Unit (ECU) low fluid circuit. When
a low fluid condition exists, the switch closes, grounding the low fluid circuit (fig. 12). The grounded condition causes the ECU to illuminate the
red indicator light on the instrument panel. The yellow light also illuminates if vehicle speed is above approximately 4 kph (2.5 mph).
