Wiring Diagram Cluster
1987 Pontiac Grand Prix Alternator Wiring Diagram
Find charging-system schematics including alternator field/control wiring, battery feeds, and fuse/relay paths.
Matched Diagrams
47
Variant Used
Grand Prix V6-231 3.8L
Total Vehicle Diagrams
389
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 1987 Pontiac Grand Prix hub with repairs, specs, codes, and other systems already tied to this car.
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Exact Repair Guides
These repair flows most often intersect with alternator diagnosis on this exact vehicle.
Alternator Replacement →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
P0563: System Voltage High →Top Alternator Diagram Paths
1.Electrical Diagrams > Starting and Charging > Charging System > AlternatorGeneralOpen2.Charging System — Diagnostic AidsStarting and ChargingOpen3.Charging System — Diagram Information and InstructionsStarting and ChargingOpen4.Charging System — Electrical DiagramsStarting and ChargingOpen5.Electrical Diagrams > Starting and Charging > Charging System > System DiagramGeneralOpen6.Electrical Diagrams > Starting and Charging > System Diagram > Less GaugesGeneralOpen7.Electrical Diagrams > Starting and Charging > System Diagram > With GaugesGeneralOpen8.Components > Miscellaneous Components > Tone GeneratorGeneralOpen9.Electrical Diagrams > Starting and Charging > Battery > Battery CableGeneralOpen10.Electrical Diagrams > Starting and Charging > Battery > System DiagramGeneralOpen11.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Circuit BreakerGeneralOpen12.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > Ctsy-CLK Fuse & Tail LPS FuseGeneralOpen13.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > Dome FuseGeneralOpen14.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > Ign 1 FuseGeneralOpen15.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > Inst LPS, Radio & Wiper FusesGeneralOpen16.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > PWR ACC Circuit Breaker & Stop/Hazard FuseGeneralOpen17.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > Turn/Back-Up FuseGeneralOpen18.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > Fuse > WDO Circuit Breaker, C/H Fuse & Heater-A/C FuseGeneralOpen19.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution > G118GeneralOpen20.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution > G119 & G120GeneralOpen21.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Ground Distribution > G125GeneralOpen22.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Power Distribution Wiring Circuit > Part 1 of 2GeneralOpen23.Electrical Diagrams > Starting and Charging > Power and Ground Distribution > System Diagram > Power Distribution Wiring Circuit > Part 2 of 2GeneralOpen24.Electrical Diagrams > Starting and Charging > Starting System > Neutral Safety SwitchGeneralOpen25.Electrical Diagrams > Starting and Charging > Starting System > Starter MotorGeneralOpen26.Electrical Diagrams > Starting and Charging > Starting System > Starter SolenoidGeneralOpen27.Electrical Diagrams > Starting and Charging > Starting System > System DiagramGeneralOpen28.Battery — Diagnostic AidsStarting and ChargingOpen29.Battery — Diagram Information and InstructionsStarting and ChargingOpen30.Battery — Electrical DiagramsStarting and ChargingOpen31.Diagnostic AidsStarting and ChargingOpen32.Diagram Information and InstructionsStarting and ChargingOpen33.Electrical Diagrams > Less GaugesStarting and ChargingOpen34.Electrical Diagrams > With GaugesStarting and ChargingOpen35.Power and Ground Distribution — Diagnostic AidsStarting and ChargingOpen36.Power and Ground Distribution — Diagram Information and InstructionsStarting and ChargingOpen37.Power and Ground Distribution — Electrical Diagrams > Ground Distribution > G118Starting and ChargingOpen38.Power and Ground Distribution — Electrical Diagrams > Ground Distribution > G119 & G120Starting and ChargingOpen39.Power and Ground Distribution — Electrical Diagrams > Ground Distribution > G125Starting and ChargingOpen40.Power and Ground Distribution — Electrical Diagrams > Power Distribution Wiring Circuit > Part 1 of 2Starting and ChargingOpen41.Power and Ground Distribution — Electrical Diagrams > Power Distribution Wiring Circuit > Part 2 of 2Starting and ChargingOpen42.Starting System — Diagnostic AidsStarting and ChargingOpen43.Starting System — Diagram Information and InstructionsStarting and ChargingOpen44.Starting System — Electrical DiagramsStarting and ChargingOpen45.Starting System > Starter Motor — Diagnostic AidsStarting and ChargingOpen46.Starting System > Starter Motor — Diagram Information and InstructionsStarting and ChargingOpen47.Starting System > Starter Motor — Electrical DiagramsStarting and ChargingOpen
Exact Vehicle Hub
Browse →Repairs That Intersect This Wiring
Browse →1987 Pontiac Grand Prix Alternator ReplacementRepair
Open the matching repair workflow that usually intersects with alternator diagnosis on this vehicle.
1987 Pontiac Grand Prix Battery ReplacementRepair
Open the matching repair workflow that usually intersects with alternator diagnosis on this vehicle.
1987 Pontiac Grand Prix Serpentine Belt ReplacementRepair
Open the matching repair workflow that usually intersects with alternator diagnosis on this vehicle.
Likely Trouble Codes for This System
Browse →P0563: System Voltage HighCode
Electrical code commonly seen during alternator diagnosis.
P0562: System Voltage LowCode
Electrical code commonly seen during alternator diagnosis.
B1318: Battery Voltage LowCode
Body/Electrical code commonly seen during alternator diagnosis.
P0601: ECM/PCM Memory Check Sum ErrorCode
Electrical code commonly seen during alternator diagnosis.
B0001: Driver Frontal Stage 1 Deployment ControlCode
Body/Electrical code commonly seen during alternator diagnosis.
B0010: Passenger Frontal Stage 1 Deployment ControlCode
Body/Electrical code commonly seen during alternator diagnosis.
More Grand Prix Wiring Pages
Same System, Other Vehicles
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