Brake Lamp Switch Circuit

BRAKE LAMP SWITCH CIRCUIT
An input from this switch prepares the CAB for a possible antilock stop.

The antilock system uses an input signal from the brake pedal activated switch. A released brake pedal will close the switch circuit and read O volts. When the driver applies the brake pedal, the circuit voltage is 12 volts. This signal tells the CAB that the pedal is depressed.