Trooper LS 2WD V6-3.5L (2001)
Heated Mirror Switch: Description and Operation
With the starter switch in ON or START, voltage is applied through fuse C-4 to the mirror defogger switch.
With the mirror defogger switch in ON, voltage is applied to the left and right door mirror defoggers and the defogger indicator light. The defogger on
indicator lights up and the left and right door mirror defoggers heat the mirror surfaces to remove any fog.
