Brake Lamp: Description and Operation
CIRCUIT OPERATIONStop Lamps
Circuit F32 in the Power Distribution Center (PDC) feeds the stop lamps. Circuit F32 connects to the stop lamp switch. A 15 Amp fuse in the PDC protects circuit F32.
When the operator presses the brake pedal, the stop lamp switch CLOSES and connects circuit F32 to circuit L50. Circuit L50 connects to the multi-function switch and supplies voltage to the L62 and L63 circuits. Circuit L62 powers the right stop lamp. Circuit L63 powers the left stop lamp. Circuit L50 splices to power the CHMSL lamp.
Ground Circuit
Circuit Z1 provides ground for the stop lamps, CHMSL lamp, and the stop lamp switch. The Z1 circuit has more than one grounding point. It also supplies ground path for the tail lamps, parking lamps, headlamps, side marker lamps, rear license plate lamp, back-up lamps and turn signals.