Wiring Diagram Cluster
2002 Buick Century 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
Century V6-3.1L VIN J
Total Vehicle Diagrams
3626
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 2002 Buick Century 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.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pump RelayGeneralOpen2.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > System DiagramGeneralOpen3.Fuel Delivery and Air Induction > Fuel Pump — Connector ViewsPowertrain ManagementOpen4.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > Arrows and SymbolsPowertrain ManagementOpen5.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > Conversion - English/MetricPowertrain ManagementOpen6.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > Equivalents - Decimal And MetricPowertrain ManagementOpen7.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Basic Knowledge RequiredPowertrain ManagementOpen8.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Checking Aftermarket AccessoriesPowertrain ManagementOpen9.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Inducing Intermittent Fault ConditionsPowertrain ManagementOpen10.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Measuring FrequencyPowertrain ManagementOpen11.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Measuring VoltagePowertrain ManagementOpen12.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Measuring Voltage DropPowertrain ManagementOpen13.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Scan Tool Snapshot ProcedurePowertrain ManagementOpen14.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Testing For a Short To VoltagePowertrain ManagementOpen15.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Testing for ContinuityPowertrain ManagementOpen16.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Testing For Electrical IntermittentsPowertrain ManagementOpen17.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Testing For Intermittent and Poor ConnectionsPowertrain ManagementOpen18.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Testing For Proper Terminal ContactPowertrain ManagementOpen19.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Circuit Testing > Testing For Short to GroundPowertrain ManagementOpen20.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Circuit TestingPowertrain ManagementOpen21.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Probing Electrical ConnectorsPowertrain ManagementOpen22.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Troubleshooting With A Digital MultimeterPowertrain ManagementOpen23.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Troubleshooting With A Test LampPowertrain ManagementOpen24.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Using Connector Test AdaptersPowertrain ManagementOpen25.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Using Fused Jumper WiresPowertrain ManagementOpen26.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Circuit Protection > Circuit BreakersPowertrain ManagementOpen27.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Circuit Protection > FusesPowertrain ManagementOpen28.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Circuit Protection > Fusible LinksPowertrain ManagementOpen29.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > Connector Position Assurance LocksPowertrain ManagementOpen30.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > General InformationPowertrain ManagementOpen31.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > Pull to Seat ConnectorsPowertrain ManagementOpen32.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > Push to Seat ConnectorsPowertrain ManagementOpen33.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > Repairing Connector TerminalsPowertrain ManagementOpen34.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > Terminal Position Assurance LocksPowertrain ManagementOpen35.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Connector Repairs > Weather Pack ConnectorsPowertrain ManagementOpen36.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > General InformationPowertrain ManagementOpen37.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Flat Wire RepairsPowertrain ManagementOpen38.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Heated Oxygen Sensor (HO2S) Wiring RepairsPowertrain ManagementOpen39.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Repairing Damaged Wire InsulationPowertrain ManagementOpen40.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > SIR/SRS Connector (Plastic Body and Terminal Metal Pin) RepairPowertrain ManagementOpen41.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > SIR/SRS System Wire Splice RepairPowertrain ManagementOpen42.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > SIR/SRS Wire Pigtail RepairPowertrain ManagementOpen43.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > SIR/SRS Wire RepairPowertrain ManagementOpen44.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > SIR/SRS Wiring RepairsPowertrain ManagementOpen45.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Splicing Copper Wire Using Splice ClipsPowertrain ManagementOpen46.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Splicing Copper Wire Using Splice SleevesPowertrain ManagementOpen47.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Splicing Inline Harness DiodesPowertrain ManagementOpen48.Fuel Delivery and Air Induction > Fuel Pump — Diagnostic Aids > General Electrical Diagnostic Procedures > Wiring Repairs > Typical Electrical Repairs > Splicing Twisted or Shielded CablePowertrain 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 Century Wiring Pages
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Same System, Other Vehicles
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