Circuit Operation
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Voltage is applied continuously from the stop fuse to the stop lamp switch. Voltage is applied from the stop lamp switch to C4 cavity 5 of the Instrument Panel Junction Block when the brake pedal is pressed. Voltage flows through the Instrument Panel Junction Block, continuing through SP300 to the Center High Mounted Stop Lamp.
SP300 applies voltage to the following lamps:
- The left and right stop lamps
- The center high mounted stop lamp (CHMSL)