GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2007 🢒 ION 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Interior Lights Dimming Schematics
Figure 1:

Turn Signal/Multifunction Switch, IPC, I/P Dimmer Switch, Hazard Switch, Fog Lamp Switch, Traction Control Switch, and Radio
Object Number: 1769100 Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Shift Indicator Module, Boost Gage, A/T Shift Indicator, and HVAC Control Assembly
BCM (PWR), DASH, IP BATT 1, IP BATT 1A, LIGHTER, ONSTAR, PARK PWR OUTLET, PWR WINDOWS, RADIO (BATT 1), RADIO (ACCY), SUNROOF, and WIPER SW Fuses
Shift Indicator Module, Boost Gage, A/T Shift Indicator, and HVAC Control Assembly
Traction Control, DLC, and Indicators
G201
Ground/Powers, Signals, and References
G201
Figure 2:

Shift Indicator Module, Boost Gage, A/T Shift Indicator, and HVAC Control Assembly
Object Number: 1769173 Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Control Module References
Turn Signal/Multifunction Switch, Instrument Panel Cluster, I/P Dimmer Switch, Hazard Switch, Fog Lamp Switch, Traction Control Switch, and Radio
Turn Signal/Multifunction Switch, Instrument Panel Cluster, I/P Dimmer Switch, Hazard Switch, Fog Lamp Switch, Traction Control Switch, and Radio
Boost Gage - UXE
Air Recirculation Controls - C60
Boost Gage - UXE
G201
G203