Wiring Diagram Cluster
1999 Infiniti Q45 Fuel Pump Wiring Diagram
Find fuel-pump power and control wiring, relay paths, and fuel-level sender references to speed up no-start diagnosis.
Matched Diagrams
48
Variant Used
Q45 V8-4130cc 4.1L DOHC MFI (VH41)
Total Vehicle Diagrams
1403
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.
Keep context
Vehicle Repair Hub
Step out of raw diagrams and into the full 1999 Infiniti Q45 hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →Likely fix path
Exact Repair Guides
These repair flows most often intersect with fuel pump diagnosis on this exact vehicle.
Fuel Pump Replacement →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
P0192: Fuel Rail Pressure Sensor Circuit Low →Top Fuel Pump Diagram Paths
1.Connector Views > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Control UnitGeneralOpen2.Connector Views > Fuel Delivery and Air Induction > Fuel Pump > System DiagramGeneralOpen3.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump Control UnitGeneralOpen4.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > System DiagramGeneralOpen5.Fuel Delivery and Air Induction > Fuel Pump — Connector ViewsPowertrain ManagementOpen6.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > CONSULT-II Checking SystemPowertrain ManagementOpen7.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > Ground InspectionPowertrain ManagementOpen8.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > How to Check TerminalsPowertrain ManagementOpen9.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > How to Follow/Perform Trouble DiagnosisPowertrain ManagementOpen10.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > How to Perform Electrical Incident Simulation TestsPowertrain ManagementOpen11.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > Key to Symbols Signifying Measurements or ProceduresPowertrain ManagementOpen12.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > Work FlowPowertrain ManagementOpen13.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > Harness Connector DescriptionPowertrain ManagementOpen14.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How To Read Harness LayoutPowertrain ManagementOpen15.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How to Read Relay DiagramsPowertrain ManagementOpen16.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How to Read Wiring DiagramsPowertrain ManagementOpen17.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > Wire Color Code IdentificationPowertrain ManagementOpen18.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > Wiring Diagram CodesPowertrain ManagementOpen19.Fuel Delivery and Air Induction > Fuel Pump — Electrical DiagramsPowertrain ManagementOpen20.Components > Modules > Fuel Pump Control Module (FPCM)GeneralOpen21.Components > Relays > Fuel Pump RelayGeneralOpen22.Connector Views > Computers and Control Systems > Main Relay (Computer/Fuel System) > Main Power Supply and Ground CircuitGeneralOpen23.Connector Views > Computers and Control Systems > Main Relay (Computer/Fuel System) > Power Supply, Ground and Communication CircuitsGeneralOpen24.Connector Views > Fuel Delivery and Air Induction > Fuel InjectorGeneralOpen25.Connector Views > Fuel Delivery and Air Induction > Fuel Temperature SensorGeneralOpen26.Connector Views > Fuel Delivery and Air Induction > System Diagram > Lean Side > Left BankGeneralOpen27.Connector Views > Fuel Delivery and Air Induction > System Diagram > Lean Side > Right BankGeneralOpen28.Connector Views > Fuel Delivery and Air Induction > System Diagram > Rich Side > Left BankGeneralOpen29.Connector Views > Fuel Delivery and Air Induction > System Diagram > Rich Side > Right BankGeneralOpen30.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Left BankGeneralOpen31.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Injector > Right BankGeneralOpen32.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Temperature SensorGeneralOpen33.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System Diagram > Left Bank > Lean SideGeneralOpen34.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System Diagram > Left Bank > Rich SideGeneralOpen35.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System Diagram > Right Bank > Lean SideGeneralOpen36.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System Diagram > Right Bank > Rich SideGeneralOpen37.Electrical Diagrams > Powertrain Management > Main Relay (Computer/Fuel System) > Main Power Supply and Ground CircuitGeneralOpen38.Electrical Diagrams > Powertrain Management > Main Relay (Computer/Fuel System) > Power Supply, Ground and Communication CircuitsGeneralOpen39.Exploded Views > Fuel Delivery and Air Induction > Accelerator PedalGeneralOpen40.Exploded Views > Fuel Delivery and Air Induction > System DiagramGeneralOpen41.Exploded Views > Fuel Delivery and Air Induction > Throttle Cable/LinkageGeneralOpen42.Fuel Delivery and Air Induction — Connector Views > Lean Side > Left BankPowertrain ManagementOpen43.Fuel Delivery and Air Induction — Connector Views > Lean Side > Right BankPowertrain ManagementOpen44.Fuel Delivery and Air Induction — Connector Views > Rich Side > Left BankPowertrain ManagementOpen45.Fuel Delivery and Air Induction — Connector Views > Rich Side > Right BankPowertrain ManagementOpen46.Fuel Delivery and Air Induction — Diagnostic Aids > CONSULT-II Checking SystemPowertrain ManagementOpen47.Fuel Delivery and Air Induction — Diagnostic Aids > Ground InspectionPowertrain ManagementOpen48.Fuel Delivery and Air Induction — Diagnostic Aids > How to Check TerminalsPowertrain ManagementOpen
Exact Vehicle Hub
Browse →Repairs That Intersect This Wiring
Browse →Likely Trouble Codes for This System
Browse →P0192: Fuel Rail Pressure Sensor Circuit LowCode
Fuel code commonly seen during fuel pump diagnosis.
P0230: Fuel Pump Primary CircuitCode
Fuel code commonly seen during fuel pump diagnosis.
P0231: Fuel Pump Secondary Circuit LowCode
Fuel code commonly seen during fuel pump diagnosis.
P2177: System Too Lean Off Idle (Bank 1)Code
Fuel code commonly seen during fuel pump diagnosis.
P0174: System Too Lean (Bank 2)Code
Fuel code commonly seen during fuel pump diagnosis.
P0191: Fuel Rail Pressure Sensor Circuit Range/PerformanceCode
Fuel code commonly seen during fuel pump diagnosis.
More Q45 Wiring Pages
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Same System, Other Vehicles
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