Stoplamps

Voltage is always available to the TCC/stoplamp switch from the STOP fuse through CKT 140 (ORN). When the brake pedal is pressed, the TCC/stoplamp switch contacts close, and voltage becomes available on CKT 17 (WHT) to the stoplamps and also to the turn signal switch. The turn signal switch has provisions for connecting to trailer stoplamps through CKT 19 (DK GRN) and CKT 18 (YEL). The center high-mounted stoplamp is a diode array assembly. The BLK wires are ground wires for the components.