GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Yukon XL - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Defogger Schematics
Figure 1:

Rear Window Defogger Control
Object Number: 744935 Size: FS
Master Electrical Component List
Rear Window Defogger Description and Operation
Defogger Grid and Ground
4WD and HVAC I Fuses
O2 B, O2 A, ENG 1, and IGN E Fuses
HTD MIR, RR DEFOG Fuses, and RR DEFOG Relay
G200 - 1 of 2
G200 - 1 of 2
HTD MIR, RR DEFOG Fuses, and RR DEFOG Relay
Defogger Grid and Ground
Primary Air Delivery Controls, HVAC Control Module Power, Ground and Serial Data
Figure 2:

Defogger Grid and Ground
Object Number: 744936 Size: FS
Master Electrical Component List
Rear Window Defogger Description and Operation
Rear Window Defogger Control
Rear Window Defogger Control
G410 2 of 2
G306
G410 2 of 2
G410 2 of 2
G410 2 of 2
G410 2 of 2