GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2003
🢒
TopKick C-Series (Crew) C4/C5
🢒 Module Power, Ground, Serial Data, and MIL
Module Power, Ground, Serial Data, and MIL
Module Power, Ground, Serial Data, and MIL
Master Electrical Component List
Engine Control Component Description (Without RPO CTF)
Engine Data Sensors - 5 Volt and Low Reference
Engine Controls Schematic Icons
I/P Fuse Block, START and TRANS Fuses/Circuit Breakers
Underhood Fuse Block, ENGINE Fuse and I/P Fuse Block, PCM-I Fuse/Circuit Breaker
Ignition Switch, OFF/RUN/START, RUN/START, and START Bus Bars
I/P Fuse Block, R-RR TRUCK, L-RR TRUCK, GAGES, and SIR Fuses/Circuit Breaker
Underhood Fuse Block, PCM-B, HTD FUEL, A/C COMP, and RR DEFOG Fuses
Underhood Fuse Block, PCM-B, HTD FUEL, A/C COMP, and RR DEFOG Fuses
Instrument Panel Cluster - 2 of 2
Electronic Fan Controls, Coolant Level Switch
Engine Data Sensors - Glow Plug Controls
G103 - 1 of 2, G105, and G106
G103 - 2 of 2
Splice Pack SP203 (L18/LB7/LG4)
