GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Heated Mirrors


Object Number: 880166  Size: FS
Master Electrical Component List
Outside Mirror Description and Operation Heated Mirrors
Outside Rearview Mirror Switch
Ign ACC, RUN and RAP Bus Bar
IGN E Fuse and A/C Compressor Clutch, Rear Window Defogger Relays
B+ Bus Bar
ECM B, HORN, RR DEFOG, HTD MIR Fuses and Fuel Pump, Horn, Rear Window Defogger Relays
HVAC I Fuse
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Utility w/Manual A/C
G202 - Utility and Crew Cab
G205 - Utility and Crew Cab
G205 - Utility and Crew Cab
G205 - Utility and Crew Cab
Figure 2:

Outside Rearview Mirror Switch


Object Number: 887066  Size: FS
Master Electrical Component List
Outside Mirror Description and Operation Power Mirrors
Folding Mirrors - Export Only
Heated Mirrors
MIR/LKS, FOG LP Fuses and DRL, Headlamp Power Relays
MIR/LKS, FOG LP Fuses and DRL, Headlamp Power Relays
MIR/LKS, FOG LP Fuses and DRL, Headlamp Power Relays
MIR/LKS, FOG LP Fuses and DRL, Headlamp Power Relays
Headlamp Switched Interior Lamps
G202 - Pickup Except Crew Cab
Figure 3:

Folding Mirrors-- Export Only


Object Number: 887086  Size: FS
Master Electrical Component List
Outside Mirror Description and Operation Folding Mirrors
Outside Rearview Mirror Switch
RDO IGN and STR WHL RDO IGN Fuses
RDO IGN and STR WHL RDO IGN Fuses
S501 - Utility
G202 - Utility and Crew Cab