Astro Van 2WD V6-4.3L VIN W (2001)
Brake Lamp: Description and Operation
STOPLAMPS
The STOP/HAZ fuse in the IP fuse block supplies battery positive voltage to the normally open stoplamp switch. When the driver presses the brake
pedal, the switch contacts close and battery positive voltage is supplied to the multifunction turn signal switch. The current flow is now to the stoplamps
which are grounded at G400 and G401. The Center High Mounted Stoplamp (CHMSL) is grounded at G400.