Wiring Diagram Cluster

1996 Infiniti Q45 Engine Management Wiring Diagram

Find ECU/PCM wiring, fuel injector circuits, ignition coil paths, and oxygen sensor schematics for engine diagnostics.

Matched Diagrams

48

Variant Used

Q45 V8-4494cc 4.5L DOHC (VH45)

Total Vehicle Diagrams

1439

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 1996 Infiniti Q45 hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub β†’

Likely fix path

Exact Repair Guides

These repair flows most often intersect with engine management diagnosis on this exact vehicle.

Spark Plug Replacement β†’

Diagnostic signal

Codes Often Seen With This System

Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.

P0301: Cylinder 1 Misfire Detected β†’

Top Engine Management Diagram Paths

1.Connector Views > Powertrain Management > Computers and Control Systems > Engine Control ModuleGeneralOpen2.Connector Views > Powertrain Management > Computers and Control Systems > Idle Speed/Throttle Actuator - ElectronicGeneralOpen3.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Left Bank > Front Heated Oxygen Sensor (Front H2OS)GeneralOpen4.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Left Bank > Front Heated Oxygen Sensor HeaterGeneralOpen5.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Left Bank > Rear Heated Oxygen Sensor (Rear HO2S)GeneralOpen6.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Left Bank > Rear Heated Oxygen Sensor HeaterGeneralOpen7.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Right Bank > Front Heated Oxygen Sensor (Front H2OS)GeneralOpen8.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Right Bank > Front Heated Oxygen Sensor HeaterGeneralOpen9.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Right Bank > Rear Heated Oxygen Sensor (Rear HO2S)GeneralOpen10.Connector Views > Powertrain Management > Computers and Control Systems > Oxygen Sensor > Right Bank > Rear Heated Oxygen Sensor HeaterGeneralOpen11.Connector Views > Powertrain Management > Computers and Control Systems > Throttle Position Sensor > Secondary Throttle Position SensorGeneralOpen12.Connector Views > Powertrain Management > Computers and Control Systems > Throttle Position Sensor > System Specific ConnectorsGeneralOpen13.Connector Views > Powertrain Management > Fuel InjectorGeneralOpen14.Connector Views > Powertrain Management > Fuel Pump > Fuel Pump Control Module (FPCM)GeneralOpen15.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel InjectorGeneralOpen16.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > System Diagram > Fuel Pump Control Module (Fpcm)GeneralOpen17.Electrical Diagrams > Powertrain Management > Idle Speed/Throttle Actuator - ElectronicGeneralOpen18.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Left Bank > Front Heated Oxygen Sensor (Front H2OS)GeneralOpen19.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Left Bank > Front Heated Oxygen Sensor HeaterGeneralOpen20.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Left Bank > Rear Heated Oxygen Sensor (Rear HO2S)GeneralOpen21.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Left Bank > Rear Heated Oxygen Sensor HeaterGeneralOpen22.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Right Bank > Front Heated Oxygen Sensor (Front H2OS)GeneralOpen23.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Right Bank > Front Heated Oxygen Sensor HeaterGeneralOpen24.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Right Bank > Rear Heated Oxygen Sensor (Rear HO2S)GeneralOpen25.Electrical Diagrams > Powertrain Management > Oxygen Sensor > Right Bank > Rear Heated Oxygen Sensor HeaterGeneralOpen26.Electrical Diagrams > Powertrain Management > Throttle Position Sensor > Secondary Throttle Position SensorGeneralOpen27.Electrical Diagrams > Powertrain Management > Throttle Position Sensor > Throttle Position SensorGeneralOpen28.Engine β€” DiagramEngine, Cooling and ExhaustOpen29.Engine > Cylinder Head Assembly β€” DiagramEngine, Cooling and ExhaustOpen30.Fuel Delivery and Air Induction > Fuel Pump β€” Connector Views > Fuel Pump Control Module (FPCM)Powertrain ManagementOpen31.Fuel Delivery and Air Induction > Fuel Pump β€” Electrical Diagrams > Fuel Pump Control Module (Fpcm)Powertrain ManagementOpen32.Components > Sensors > Engine Coolant Temperature (ECT) SensorGeneralOpen33.Components > Sensors > Front Heated Oxygen SensorGeneralOpen34.Components > Sensors > Secondary Throttle Position SensorGeneralOpen35.Components > Sensors > Throttle Position SensorGeneralOpen36.Components > Switches > Throttle Position SwitchGeneralOpen37.Connector Views > Power and Ground Distribution > Multiple Junction Connector > Super Multiple Junction (SMJ) > Engine Room Harness (LH)GeneralOpen38.Connector Views > Power and Ground Distribution > Multiple Junction Connector > Super Multiple Junction (SMJ) > Engine Room Harness (RH)GeneralOpen39.Connector Views > Powertrain Management > Canister Purge SolenoidGeneralOpen40.Connector Views > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor > Non System Specific Connectors > E110GeneralOpen41.Connector Views > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor > Non System Specific Connectors > M96GeneralOpen42.Connector Views > Powertrain Management > Computers and Control Systems > Air Flow Meter/Sensor > System Specific ConnectorsGeneralOpen43.Connector Views > Powertrain Management > Computers and Control Systems > Air Temperature Sensor ( Ambient / Intake ) > Non System Specific Connectors > E110GeneralOpen44.Connector Views > Powertrain Management > Computers and Control Systems > Air Temperature Sensor ( Ambient / Intake ) > Non System Specific Connectors > M96GeneralOpen45.Connector Views > Powertrain Management > Computers and Control Systems > Air Temperature Sensor ( Ambient / Intake ) > System Specific ConnectorsGeneralOpen46.Connector Views > Powertrain Management > Computers and Control Systems > Body Control Module > Automatic Drive Positioner-LAN > Non-System Specific Connectors > E110GeneralOpen47.Connector Views > Powertrain Management > Computers and Control Systems > Body Control Module > Automatic Drive Positioner-LAN > Non-System Specific Connectors > F54GeneralOpen48.Connector Views > Powertrain Management > Computers and Control Systems > Body Control Module > Automatic Drive Positioner-LAN > Non-System Specific Connectors > M118GeneralOpen