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

Cell 81: Power Distribution


Object Number: 458273  Size: FS
Instrument Cluster and HUD Components
Instrument Cluster Circuit Description
Cell 81: Brake, Fuel, Oil, Cruise, Volt and Airbag Indicators
Cell 10: IGNFD, T/SIG, OXY SEN, and SBM LCM Fuses
Cell 10: IGN, RUN/CRK, RUN, SBM, and PCM/CRU Fuses
Cell 10: IGN, RUN/CRK, RUN, SBM, and PCM/CRU Fuses
Cell 10: IGNFD, T/SIG, OXY SEN, and SBM LCM Fuses
Power Distribution Schematics
Cell 10: BATT 1, RDM, C/LTR, DDM, HTDST L, TRK REL, PDM, SBM, and CSTR/SBM FuseS
Handling ESD Sensitive Parts Notice
Cell 14: G202 (3 of 4)
Cell 50: Class 2 Serial Data Line
Power Distribution Schematics
Figure 2:

Cell 81: Brake, Fuel, Oil, Cruise, Volt and Airbag Indicators


Object Number: 458276  Size: FS
Instrument Cluster and HUD Components
Instrument Cluster Circuit Description
Cell 81: Temperature Gauge, Tachometer, Speedometer and Odometer
Cell 81: Power Distribution
Handling ESD Sensitive Parts Notice
ABS/TCS Schematics
Brake Warning System Schematics
Brake Warning System Schematics
Figure 3:

Cell 81: Temperature Gauge, Tachomteer, Speedometer and Odometer


Object Number: 458279  Size: FS
Instrument Cluster and HUD Components
Instrument Cluster Circuit Description
Cell 81: Driver Information and Head Up Display
Cell 81: Brake, Fuel, Oil, Cruise, Volt and Airbag Indicators
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Cell 34: Stoplamp Switch
Cell 83
Handling ESD Sensitive Parts Notice
Figure 4:

Cell 81: Driver Information and Head Up Display


Object Number: 313519  Size: FS
Instrument Cluster and HUD Components
Instrument Cluster Circuit Description
Cell 81: Lamp, Security and Safety Belt Indicators
Cell 81: Temperature Gauge, Tachometer, Speedometer and Odometer
Handling ESD Sensitive Parts Notice
Cell 14: G202 (3 of 4)
Figure 5:

Cell 81: Lamp, Security and Saftey Belt Indicators


Object Number: 458293  Size: FS
Instrument Cluster and HUD Components
Instrument Cluster Circuit Description
Cell 81: Driver Information and Head Up Display
Exterior Lights Schematics
Cell 100: Headlamp Dimmer, Park Gear Input, and High Beam Indicator
Interior Lights Schematics
Cell 133: Content Theft Deterrent
Cell 83
Handling ESD Sensitive Parts Notice
Engine Controls Schematics