Wiring Diagram Cluster
1991 Pontiac Firebird Instrument Cluster Wiring Diagram
Find instrument panel wiring, gauge sender circuits, warning light paths, and speedometer/tachometer schematics.
Matched Diagrams
33
Variant Used
Firebird V6-191 3.1L
Total Vehicle Diagrams
587
From Diagram To Fix
Use this wiring page as the jump point, not the dead end
Open the exact diagram, then move directly into the vehicle hub, the repair most likely tied to this system, or the code cluster that usually shows up with it.
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Vehicle Repair Hub
Step out of raw diagrams and into the full 1991 Pontiac Firebird hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →OEM source
Factory Manual Evidence
When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.
Open interactive browser →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
U0073: Control Module Communication Bus Off →Top Instrument Cluster Diagram Paths
1.Electrical Diagrams > Instrument Panel and Warning Indicators > Gauges > Coolant Temperature, Oil Pressure, TachometerInstrument Panel, Gauges and Warning IndicatorsOpen2.Electrical Diagrams > Instrument Panel and Warning Indicators > Gauges > Fuel Gage, Speedometer, VoltmeterInstrument Panel, Gauges and Warning IndicatorsOpen3.Electrical Diagrams > Instrument Panel and Warning Indicators > Audible Warnings (Chime)Instrument Panel, Gauges and Warning IndicatorsOpen4.Electrical Diagrams > Instrument Panel and Warning Indicators > Warning Indicators > Airbag, Alarm, Shift IndicatorsInstrument Panel, Gauges and Warning IndicatorsOpen5.Electrical Diagrams > Instrument Panel and Warning Indicators > Warning Indicators > Brake Warning Indicator > With Daytime Running LampsInstrument Panel, Gauges and Warning IndicatorsOpen6.Electrical Diagrams > Instrument Panel and Warning Indicators > Warning Indicators > Brake Warning Indicator > Without Daytime Running LampsInstrument Panel, Gauges and Warning IndicatorsOpen7.Electrical Diagrams > Instrument Panel and Warning Indicators > Warning Indicators > ChimeInstrument Panel, Gauges and Warning IndicatorsOpen8.Electrical Diagrams > Instrument Panel and Warning Indicators > Warning Indicators > High Beam, Safety Belt, Service Engine Soon, Turn IndicatorsInstrument Panel, Gauges and Warning IndicatorsOpen9.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Gauges > Coolant Temperature, Oil Pressure, TachometerGeneralOpen10.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Gauges > Fuel Gage, Speedometer, VoltmeterGeneralOpen11.Electrical Diagrams > Instrument Panel DimmingInstrument Panel, Gauges and Warning IndicatorsOpen12.Electrical Diagrams > Instrument Panel IlluminationInstrument Panel, Gauges and Warning IndicatorsOpen13.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > Cigarette LighterGeneralOpen14.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Audible Warnings (Chime)GeneralOpen15.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Warning Indicators > Airbag, Alarm, Shift IndicatorsGeneralOpen16.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Warning Indicators > Brake Warning Indicator > With Daytime Running LampsGeneralOpen17.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Warning Indicators > Brake Warning Indicator > Without Daytime Running LampsGeneralOpen18.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Warning Indicators > ChimeGeneralOpen19.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Warning Indicators > High Beam, Safety Belt, Service Engine Soon, Turn IndicatorsGeneralOpen20.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel DimmingGeneralOpen21.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel IlluminationGeneralOpen22.Diagnostic Aids > Pull-to-Seat ConnectorsInstrument Panel, Gauges and Warning IndicatorsOpen23.Diagnostic Aids > Push-to-Seat ConnectorsInstrument Panel, Gauges and Warning IndicatorsOpen24.Diagram Information and Instructions > Cell ReferencesInstrument Panel, Gauges and Warning IndicatorsOpen25.Diagram Information and Instructions > Schematic SymbolsInstrument Panel, Gauges and Warning IndicatorsOpen26.Diagram Information and Instructions > Wire Color Code IdentificationInstrument Panel, Gauges and Warning IndicatorsOpen27.Shift Indicator - A/T — Diagnostic Aids > Pull-to-Seat ConnectorsInstrument Panel, Gauges and Warning IndicatorsOpen28.Shift Indicator - A/T — Diagnostic Aids > Push-to-Seat ConnectorsInstrument Panel, Gauges and Warning IndicatorsOpen29.Shift Indicator - A/T — Diagram Information and Instructions > Cell ReferencesInstrument Panel, Gauges and Warning IndicatorsOpen30.Shift Indicator - A/T — Diagram Information and Instructions > Schematic SymbolsInstrument Panel, Gauges and Warning IndicatorsOpen31.Shift Indicator - A/T — Diagram Information and Instructions > Wire Color Code IdentificationInstrument Panel, Gauges and Warning IndicatorsOpen32.Shift Indicator - A/T — Electrical DiagramsInstrument Panel, Gauges and Warning IndicatorsOpen33.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > GaugesGeneralOpen
Exact Vehicle Hub
Browse →Likely Trouble Codes for This System
Browse →U0073: Control Module Communication Bus OffCode
Network/Communication code commonly seen during instrument cluster diagnosis.
B0001: Driver Frontal Stage 1 Deployment ControlCode
Body/Electrical code commonly seen during instrument cluster diagnosis.
B0010: Passenger Frontal Stage 1 Deployment ControlCode
Body/Electrical code commonly seen during instrument cluster diagnosis.
P0218: Transmission Fluid Over TemperatureCode
Transmission code commonly seen during instrument cluster diagnosis.
P0562: System Voltage LowCode
Electrical code commonly seen during instrument cluster diagnosis.
P0700: Transmission Control SystemCode
Transmission code commonly seen during instrument cluster diagnosis.
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