GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2003
🢒
TopKick C-Series Commercial (Cutaway) C4/C5
🢒 Module Power, Ground, Serial Data, MIL, VSS, and Torque Signals
Module Power, Ground, Serial Data, MIL, VSS, and Torque Signals
Module Power, Ground, Serial Data, MIL, VSS, and Torque Signals
Master Electrical Component List
Overdrive Defeat and CAN Serial Data
OBD II Symbol Description Notice
B+ Bus Bar
Ignition Switch, OFF/RUN/START, RUN/START, and START Bus Bars
Underhood Fuse Block, PCM-B, HTD FUEL, A/C COMP, and RR DEFOG Fuses
I/P Fuse Block, START and TRANS Fuses/Circuit Breakers
I/P Fuse Block, R-RR TRUCK, L-RR TRUCK, GAGES, and SIR Fuses/Circuit Breaker
Driver Information Center (DIC)
I/P Fuse Block, START and TRANS Fuses/Circuit Breakers
Splice Pack SP203 (L18/LB7/LG4)
G203 - 2 of 4
