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

Cell 81: Power Distribution, Ground Distribution and Trip Odometer Reset Switch


Object Number: 308554  Size: FS
Instrument Cluster Components Component Locator
Instrument Cluster Circuit Description Description and Operation
Cell 81: I/P Lamp Dimmer Switch, Windshield Washer Solvent Level Switch, and Serial Data
Cell 10: Battery, Starter, Generator, Underhood Accessory Wiring JunctiOn Block, And Fuse Block
Cell 10: Underhood Accessory Wiring Junction Block, Ignition Switch, And Fuse Block
Cell 10: ABS, HEATED MIRROR, CRANK SIGNAL, And IGN 0 Fuses
Cell 10: RADIO-HVAC, ABS-BCM, INADV POWER BUS, CIGAR LTR and CD CHANGER Fuses
Cell 14: LH I/P Ground G201
Handling Electrostatic Discharge Sensitive Parts Notice
Cell 117: Power, I/P, Switch Illumination and Ground Distribution
Figure 2:

Cell 81: I/P Lamp Dimmer Switch, Windshield Washer Solvent Level Switch, and Serial Data


Object Number: 308555  Size: FS
Instrument Cluster Components Component Locator
Instrument Cluster Circuit Description Description and Operation
Cell 81: Low Engine Coolant Level Switch, Engine Coolant Level IndicatoR Module, PCM and SDM
Cell 81: Power Distribution, Ground Distribution and Trip Odometer Reset Switch
Cell 10: FRT PARK LPS, TAIL LAMPS, And PANEL DIMMING Fuses
Cell 117: Power, I/P, Switch Illumination and Ground Distribution
Cell 117: I/P Lamp Dimmer Switch and Ground Distribution
Cell 110: Power Distribution, Hazard Warning Switch, Turn Signal Switch, Turn Signal Lamps and Ground Distribution
Cell 50
Cell 100: DRL Control Module and BCM
Cell 14: Forward Lamp Grounds G101 And G102
Figure 3:

Cell 81: Low Engine Coolant Level Switch, Engine Coolant Level Indicator Module, PCM and SDM


Object Number: 464987  Size: FS
Instrument Cluster Components Component Locator
Instrument Cluster Circuit Description Description and Operation
Cell 81: Brake Fluid Level Indicator Switch and EBTCM
Cell 81: I/P Lamp Dimmer Switch, Windshield Washer Solvent Level Switch, and Serial Data
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Cell 14: Engine Grounds G100, G111, And G113
SIR Handling Caution
Figure 4:

Cell 81: Brake Fluid Level Indicator Switch and EBTCM


Object Number: 465046  Size: FS
Instrument Cluster Components Component Locator
Instrument Cluster Circuit Description Description and Operation
Cell 81: Vehicle Speed Signal
Cell 81: Low Engine Coolant Level Switch, Engine Coolant Level IndicatoR Module, PCM and SDM
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Cell 14: Engine Compartment Ground G119
Figure 5:

Cell 81: Vehicle Speed Signal


Object Number: 465064  Size: FS
Instrument Cluster Components Component Locator
Instrument Cluster Circuit Description Description and Operation
Cell 81: Brake Fluid Level Indicator Switch and EBTCM
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice