GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2003
🢒
Sonoma Pickup - 4WD
🢒 Power, Ground, and Serial Data
Power, Ground, and Serial Data
Power, Ground, and Serial Data
Master Electrical Component List
Radio/Audio System Description and Operation w/ CTF
Speakers - Pickup except CrewCab
RDO IGN and STR WHL RDO IGN Fuses
B+ Bus Bar
ILLUM, STG WHL ILLUM, and PARK LP Fuses
AUX PWR, RDO BATT and HDLP SW Fuses
ILLUM Power - Pickup Except Crew Cab
ILLUM Power - Utility
04 S/T Steering Wheel System Schematics
LED Dimming Signal
Class 2 Serial Data
G203 and G204 - Utility w/Manual A/C
G203 and G204 - Pickup
G203 and G204 - Pickup
G203 and G204 - Utility w/Manual A/C
