Wiring Diagram Cluster
1991 Infiniti Q45 A/C & Heater Wiring Diagram
Find A/C compressor clutch wiring, blower motor circuits, temperature control module paths, and refrigerant pressure switch schematics.
Matched Diagrams
48
Variant Used
Q45 V8-4494cc 4.5L DOHC (VH45)
Total Vehicle Diagrams
559
From Diagram To Fix
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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 Infiniti Q45 hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →OEM source
Factory Manual Evidence
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1991 Infiniti Q45 Diagnostic Trouble Codes →Stay in wiring
More System Pages for This Vehicle
Move laterally into the neighboring systems that usually share the same electrical neighborhood.
Starter Wiring Diagram →Top A/C & Heater Diagram Paths
1.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Electrical Diagrams > Heater Wiring DiagramsGeneralOpen2.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Fuse Panel Details > Heater CircuitGeneralOpen3.Exploded Views > Heating and Air Conditioning > Compressor ClutchGeneralOpen4.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Ground InspectionBrakes and Traction ControlOpen5.Antilock Brakes / Traction Control Systems — Diagnostic Aids > How to Follow/Perform Trouble DiagnosisBrakes and Traction ControlOpen6.Antilock Brakes / Traction Control Systems — Diagnostic Aids > How to Perform Electrical Incident Simulation TestsBrakes and Traction ControlOpen7.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Key to Symbols Signifying Measurements or ProceduresBrakes and Traction ControlOpen8.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Work FlowBrakes and Traction ControlOpen9.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Harness Connector DescriptionBrakes and Traction ControlOpen10.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > How to Read Relay DiagramsBrakes and Traction ControlOpen11.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > How to Read Wiring DiagramsBrakes and Traction ControlOpen12.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Wire Color Code IdentificationBrakes and Traction ControlOpen13.Antilock Brakes / Traction Control Systems — Electrical Diagrams > ABS Wiring CircuitBrakes and Traction ControlOpen14.Antilock Brakes / Traction Control Systems — Electrical Diagrams > Anti-Lock Brake SystemBrakes and Traction ControlOpen15.Antilock Brakes / Traction Control Systems — Electrical Diagrams > Circuit DiagramBrakes and Traction ControlOpen16.Antilock Brakes / Traction Control Systems — Electrical Diagrams > Circuit Diagram For Quick Pinpoint CheckBrakes and Traction ControlOpen17.Antilock Brakes / Traction Control Systems — Electrical Diagrams > Wiring DiagramsBrakes and Traction ControlOpen18.Electrical Diagrams > Electrical Diagrams > Air ConditioningHeating and Air ConditioningOpen19.Electrical Diagrams > Electrical Diagrams > Air Conditioning SchematicHeating and Air ConditioningOpen20.Electrical Diagrams > Electrical Diagrams > Heater Wiring DiagramsHeating and Air ConditioningOpen21.Electrical Diagrams > Fuse Panel Details > Air ConditioningHeating and Air ConditioningOpen22.Electrical Diagrams > Fuse Panel Details > Heater CircuitHeating and Air ConditioningOpen23.Radio, Stereo, and Compact Disc — Diagnostic Aids > Ground InspectionAccessories and Optional EquipmentOpen24.Radio, Stereo, and Compact Disc — Diagnostic Aids > How to Follow/Perform Trouble DiagnosisAccessories and Optional EquipmentOpen25.Radio, Stereo, and Compact Disc — Diagnostic Aids > How to Perform Electrical Incident Simulation TestsAccessories and Optional EquipmentOpen26.Radio, Stereo, and Compact Disc — Diagnostic Aids > Key to Symbols Signifying Measurements or ProceduresAccessories and Optional EquipmentOpen27.Radio, Stereo, and Compact Disc — Diagnostic Aids > Work FlowAccessories and Optional EquipmentOpen28.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > Harness Connector DescriptionAccessories and Optional EquipmentOpen29.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > How to Read Relay DiagramsAccessories and Optional EquipmentOpen30.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > How to Read Wiring DiagramsAccessories and Optional EquipmentOpen31.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > Wire Color Code IdentificationAccessories and Optional EquipmentOpen32.Radio, Stereo, and Compact Disc — Electrical Diagrams > Audio System WiringAccessories and Optional EquipmentOpen33.Radio, Stereo, and Compact Disc — Electrical Diagrams > Fuse Panel DetailsAccessories and Optional EquipmentOpen34.Radio, Stereo, and Compact Disc — Electrical Diagrams > Power Antenna WiringAccessories and Optional EquipmentOpen35.Electrical Diagrams > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > ABS Wiring CircuitGeneralOpen36.Electrical Diagrams > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Anti-Lock Brake SystemGeneralOpen37.Electrical Diagrams > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Circuit DiagramGeneralOpen38.Electrical Diagrams > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Circuit Diagram For Quick Pinpoint CheckGeneralOpen39.Electrical Diagrams > Brakes and Traction Control > Antilock Brakes / Traction Control Systems > Wiring DiagramsGeneralOpen40.Electrical Diagrams > Brakes and Traction Control > System Diagram > Anti-Lock Braking System (ABS)GeneralOpen41.Electrical Diagrams > Brakes and Traction Control > System Diagram > Fuse Panel DetailsGeneralOpen42.Electrical Diagrams > Exterior & Cornering Lamp > Back-UpLighting and HornsOpen43.Electrical Diagrams > Gauges & Meter Wiring > TachometerInstrument Panel, Gauges and Warning IndicatorsOpen44.Electrical Diagrams > Heating and Air Conditioning > Condenser Fan > Cooling Fan ControlGeneralOpen45.Electrical Diagrams > Heating and Air Conditioning > Condenser Fan > Cooling FansGeneralOpen46.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Electrical Diagrams > Air ConditioningGeneralOpen47.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Electrical Diagrams > Air Conditioning SchematicGeneralOpen48.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Fuse Panel Details > Air ConditioningGeneralOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1991 Infiniti Q45 Diagnostic Trouble CodesOEM Manual
Repair and Diagnosis: Diagnostic Trouble Codes — 1991 Infiniti Q45 V8-4494cc 4.5L DOHC (VH45) Service Manual | Operation CHARM Operation CH...
1991 Infiniti Q45 A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1991 Infiniti Q45 V8-4494cc 4.5L DOHC (VH45) Service Manual | Operation CHARM Operation CHARM : Ca...
1991 Infiniti Q45 Diagnostic Trouble CodesOEM Manual
Repair and Diagnosis: Diagnostic Trouble Codes — 1991 Infiniti M30 V6-181 3.0L Service Manual | Operation CHARM Operation CHARM : Car repai...
1991 Infiniti Q45 Diagnostic Trouble CodesOEM Manual
Repair and Diagnosis: Diagnostic Trouble Codes — 1991 Infiniti G20 L4-2.0L (SR20DE) Service Manual | Operation CHARM Operation CHARM : Car...
More Q45 Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramABS Brake Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramAirbag SRS Wiring DiagramEngine Management Wiring DiagramBody Electrical Wiring Diagram
Same System, Other Vehicles
1991 Toyota Supra A/C & Heater Wiring Diagram1993 Toyota Camry Sedan A/C & Heater Wiring Diagram1993 Toyota Camry Wagon A/C & Heater Wiring Diagram1994 Toyota Camry Sedan 2-Door A/C & Heater Wiring Diagram1994 Toyota Camry Sedan 4-Door A/C & Heater Wiring Diagram1994 Toyota Celica A/C & Heater Wiring Diagram1995 Toyota Camry Coupe 2-Door A/C & Heater Wiring Diagram1995 Toyota Celica Coupe A/C & Heater Wiring Diagram