K 2500 Suburban 4WD V8-5.7L VIN R (1999)
Garage Door Opener Transmitter: Description and Operation
Circuit Description
(Luxury)
The garage door opener, located in the overhead console, is a three button switch that receives power through CKT 40 (ORN) from the courtesy lamp
feed of the body control module. Battery voltage is hot at all times to the switch. Ground is supplied by G400 through CKT 150 (BLK). When the
headlamp and panel dimmer switch is in the HEAD or PARK position. Power is received through CKT 9 (BRN) to light the LED's when the headlights
are on.
(Except Luxury)
The garage door opener, located in the overhead console, is a three button switch that receives power through CKT 40 (ORN) from the courtesy lamp
feed. Battery voltage is hot at all times to the switch. Ground is supplied by G400 through CKT 150 (BLK). When the headlamp and panel dimmer
switch is in the HEAD or PARK position, power is received through CKT 9 (BRN) to light the LED's when the headlights are on.
