GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2004
🢒
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 Module Description
Fuse Block-Underhood Ignition A and B Relays
Engine Controls Schematic Icons
Fuse Block-Underhood Ignition A and B Relays
B+ Bus Bar
Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars
Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars
A/C COMP, HTD FUEL, PCM-B, and RR DEFOG Fuses
START and TRANS Fuses/Circuit Breakers
ENGINE and PCM-I Fuses/Circuit Breakers
GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers
Power and Indicators
START and TRANS Fuses/Circuit Breakers
ENGINE and PCM-I Fuses/Circuit Breakers
J1939 Serial Data (L65/L18/LG4/LC8) - 2 of 2
Splice Pack SP203 (L18/LB7/LG4/LLY)
G203 - 2 of 4
