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

I/P Dimming Supply Voltage 1 of 3 and LED Dimming Supply Voltage


Object Number: 1754475  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
I/P Dimming Supply Voltage - 2 of 3
Daytime Running Lights (DRL)
Headlamps
Park Lamp Relay Control and Front Park Lamps
Dome and Courtesy Lamp Switch Signals and Door Latch Assemblies
PNP Switch, Tow/Haul Switch, Serial Data and Indicator
PNP Switch, Tow/Haul Switch, Serial Data and Indicator
Pressure Controls, Tow/Haul Switch, Temperature and Speed Sensors
G302
Primary Blower and Air Delivery Controls - C42 and Vacuum Pump - Diesel
G304
Steering Wheel/Speed Position Inputs, Traction Control Switch and Precharge Pump - JL4
I/P Dimming Supply Voltage - 2 of 3
Module Power, Ground, Serial Data, Indicator and Disable Switch
G103, G104, G105, G106, G107, G108, G300, G301 and G305
Figure 2:

I/P Dimming Supply Voltage 2 of 3


Object Number: 1754476  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
I/P Dimming Supply Voltage - 3 of 3
I/P Dimming Supply Voltage - 1 of 3 and LED Dimming Supply Voltage
I/P Dimming Supply Voltage - 1 of 3 and LED Dimming Supply Voltage
Moveable Windows Schematics
G347 - 1 of 3
G347 - 2 of 3
Rear HVAC - C36 w/o C69
G347 - 2 of 3
G347 - 2 of 3
I/P Dimming Supply Voltage - 3 of 3
Figure 3:

I/P Dimming Supply Voltage 3 of 3


Object Number: 1754481  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
I/P Dimming Supply Voltage - 2 of 3
I/P Dimming Supply Voltage - 2 of 3
Rear HVAC with Rear Auxiliary Controls 2 of 3 - C69
Rear HVAC with Rear Auxiliary Controls 1 of 3 - C69
G347 - 3 of 3
G347 - 1 of 3