Stop Lamps and Center High Mount Stoplamp

Voltage is applied continuously from the stop fuse to the stoplamp switch. Voltage is applied from the stop lamp switch to junction block 1 C6 cavity 6 when the brake pedal is pressed. Voltage flows to junction block 1 C5 cavity 7, continuing to SP450. At the same time that happens current flows through junction block 1 C3 cavity 1 to junction block 3 C3 cavity 2.

SP450 applies voltage to the following lamps:
^ The left and right stop lamps
^ The Center High Mounted Stop Lamp (CHMSL) Junction block 3 C3 cavity 2 applies voltage to the following brake signal receivers:
1. Shift Lock Control Module (w/ automatic transaxle)
2. Brake Pressure Modulator Valve (w/ ABS)
3. Powertrain Control Module