GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 2WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Fog Lights Schematics
Figure 1:

Front
Object Number: 885876 Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Rear - Export
B+ Bus Bar
Park/Turn Signal Lamps, Marker Lamps and Turn Signal Fuses, Front
B+ Bus Bar
DRL and Headlamp Power Relays
ILLUM, STG WHL ILLUM, and PARK LP Fuses
Park Lamp Control
ILLUM Fuse 12
G203 and G204 - Pickup
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Pickup
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Pickup
G111 and G112 - Except Export
G111 and G112 - Except Export
Figure 2:

Rear (Export)
Object Number: 885886 Size: FS
Master Electrical Component List
Exterior Lighting Systems Description and Operation
Front
B+ Bus Bar
Park/Turn Signal Lamps, Marker Lamps and Turn Signal Fuses, Front
B+ Bus Bar
DRL and Headlamp Power Relays
ILLUM, STG WHL ILLUM, and PARK LP Fuses
Park Lamp Control
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Utility w/Manual A/C
S313 and S419