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

Power, Ground, Serial Data, Odometer, and DIC


Object Number: 1788263  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Indicators
Ignition Switch 2 of 2
G104 1 of 2
Ignition Switch 2 of 2
Underhood Fuse Block B+ BUS 2 of 2
Underhood Fuse Block DIM/ALDL, Volt Check, Flasher, CCP, ECM/TCM, and ABS Fuses
Class 2 (1 of 2) Serial Data Bus - RHD
G104 1 of 2
G200
Figure 2:

Indicators


Object Number: 1788275  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Electronic PRNDL (M82)
Power, Ground, Serial Data, Odometer and DIC
Turn Signal/Hazard Flasher Module
Class 2 (1 of 2) Serial Data Bus - RHD
Steering Wheel Controls - 6.0L (LS2)
G200
Tap Up/Down Shift Lever (LHD)
Engine Controls - 2.8L/3.6L (LP1/LS2) (Power, Ground, Serial, DIC and Indicator)
Power, Ground, Serial Data, DIC and Indicator
Hydraulic Brakes Schematics
BPP Sensor, Switches and Indicators - 2.8L/3.6L (LP1/LY7)
Figure 3:

Electronic PRNDL (M82)


Object Number: 1788277  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Engine Oil Pressure (EOP) Sensor, Engine Oil Level/Temp. Sensor, TFT and Indicator
Indicators
Ignition Switch 2 of 2
G104 1 of 2
Underhood Fuse Block B+ 1 of 2
Underhood Fuse Block Headlamp Relays/Fuses, Accessory relay, I/P Outlet, Outlet, Wiper Module, Wiperswitch, and Elec PRNDL Fuses
Class 2 Serial Data Bus - LHD (1 of 2)
G104 1 of 2
G201
BPP Sensor, Switches and Indicators - 2.8L/3.6L (LP1/LY7)
Power, Ground and Serial Data 1 of 2
G201
Figure 4:

Engine Oil Pressure (EOP) Sensor, Engine Oil Level/Temperature Sensor, TFT, and Indicators


Object Number: 1788279  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages 2.8L/3.6L (LP1/LY7)
Electronic PRNDL (M82)
Engine Controls - 2.8L/3.6L (LP1/LS2) (Power, Ground, Serial, DIC and Indicator)
Class 2 Serial Data Bus - LHD (2 of 2)
G140, G141, and G142 (LS2)
Figure 5:

Gages - 2.8L/3.6L (LP1/LY7)


Object Number: 1788338  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages - 6.0L (LS2)
Engine Oil Pressure (EOP) Sensor, Engine Oil Level/Temp. Sensor, TFT and Indicator
Cooling Fans - 2.8L/3.6L (LP1/LY7)
Class 2 Serial Data Bus - LHD (1 of 2)
Fuel Controls - EVAP Controls and IMRC Solenoid
Fuel Controls - EVAP Controls and IMRC Solenoid
Figure 6:

Gages - 6.0L (LS2)


Object Number: 1788341  Size: FS
Master Electrical Component List
Instrument Cluster Description and Operation
Control Module References
Gages 2.8L/3.6L (LP1/LY7)
Cooling Fans - 6.0L (LS2)
Class 2 Serial Data Bus - LHD (1 of 2)
Fuel Controls - EVAP Controls