Rainier 2WD L6-4.2L VIN S (2005)
Vanity Lamp: Description and Operation
VANITY MIRROR LAMPS
The inadvertent power courtesy lamps supply voltage circuit of the BCM provides battery positive voltage to each vanity mirror lamp. When the vanity
mirror cover on the sunshade is opened, a switch closes to provide a ground circuit and the vanity lamp illuminates.
