GM Service Manual Online
For 1990-2009 cars only
Figure 1:

DIC


Object Number: 1645653  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
Gage Center
Ignition Switch - OFF/RUN/START, RUN/START, and START Bus Bars
AIRBAG, GAUGES, LT REAR TURN/STOP, and RT REAR TURN/STOP Fuses/Circuit Breakers
Charging System (L18/LLY)
Engine Exhaust Brake Schematics
Charging System (L18/LLY)
Module Power, Ground, and Serial Data
Module Power, Ground, Serial Data, MIL, VSS, and Torque Controls - L18/LLY
ABS Relay, DIC and EBCM
Engine Data Sensors - Injection Timing Controls
Differential Lock Schematics
Brake Warning Indicators
Wiper/Washer System Schematics
Engine Exhaust Brake Schematics
G100 - LG5
G203 - 3 of 4
G119 and G120
Figure 2:

Gage Center


Object Number: 1828278  Size: FS
Master Electrical Component List
Indicator/Warning Message Description and Operation
DIC
Interior Lights Dimming Schematics
Ignition Switch - OFF/RUN/START, RUN/START, and START Bus Bars
AIRBAG, GAUGES, LT REAR TURN/STOP, and RT REAR TURN/STOP Fuses/Circuit Breakers
G103, G105, and G106
G103, G105, and G106
G203 - 2 of 4