Wiring Diagram Cluster

1990 Nissan-Datsun 240SX Headlight Wiring Diagram

Find headlight circuit schematics, high/low beam relay paths, DRL wiring, and ground points for lighting diagnosis.

Matched Diagrams

48

Variant Used

240SX L4-2389cc 2.4L SOHC MFI (KA24E)

Total Vehicle Diagrams

488

πŸ€– Stuck on this electrical issue?

Wiring diagrams can be a maze. Ask Manuel, our factory-trained AI mechanic, to analyze this circuit or troubleshoot your specific symptom.

Ask AI Mechanic βž”

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 1990 Nissan-Datsun 240SX hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub β†’

OEM source

Factory Manual Evidence

When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.

1990 Nissan-Datsun 240SX Repair and Diagnosis β†’

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 β†’

Top Headlight Diagram Paths

1.Electrical Diagrams > Lighting and Horns > Daytime Running LampGeneralOpen2.Electrical Diagrams > Lighting and Horns > HeadlampGeneralOpen3.Headlamp β€” Diagnostic Aids > Examples of Common Electrical IncidentsLighting and HornsOpen4.Headlamp β€” Diagnostic Aids > Flow of DiagnosisLighting and HornsOpen5.Headlamp β€” Diagnostic Aids > Recommended Tools and EquipmentLighting and HornsOpen6.Headlamp β€” Diagnostic Aids > Testing Circuits > Ground InspectionLighting and HornsOpen7.Headlamp β€” Diagnostic Aids > Testing Circuits > Testing For OpensLighting and HornsOpen8.Headlamp β€” Diagnostic Aids > Testing Circuits > Testing For ShortsLighting and HornsOpen9.Headlamp β€” Diagnostic Aids > Testing Circuits > Voltage Drop TestsLighting and HornsOpen10.Headlamp β€” Diagram Information and Instructions > Harness Connector InformationLighting and HornsOpen11.Headlamp β€” Diagram Information and Instructions > Standardized Relay InformationLighting and HornsOpen12.Headlamp β€” Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen13.Headlamp β€” Diagram Information and Instructions > Wiring Diagram Symbol IDLighting and HornsOpen14.Headlamp β€” Electrical DiagramsLighting and HornsOpen15.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen16.Electrical Diagrams > Lighting and Horns > Clearance Lamp > CoupeGeneralOpen17.Electrical Diagrams > Lighting and Horns > Clearance Lamp > FastbackGeneralOpen18.Electrical Diagrams > Lighting and Horns > Courtesy LampGeneralOpen19.Electrical Diagrams > Lighting and Horns > Fog/Driving LampGeneralOpen20.Electrical Diagrams > Lighting and Horns > Hazard Warning LampsGeneralOpen21.Electrical Diagrams > Lighting and Horns > HornGeneralOpen22.Electrical Diagrams > Lighting and Horns > License Plate BulbGeneralOpen23.Electrical Diagrams > Lighting and Horns > System Diagram > Fuse Panel DetailsGeneralOpen24.Electrical Diagrams > Lighting and Horns > System Diagram > Time Control SystemGeneralOpen25.Electrical Diagrams > Lighting and Horns > Turn SignalsGeneralOpen26.Diagnostic Aids > Examples of Common Electrical IncidentsLighting and HornsOpen27.Diagnostic Aids > Flow of DiagnosisLighting and HornsOpen28.Diagnostic Aids > Recommended Tools and EquipmentLighting and HornsOpen29.Diagnostic Aids > Testing Circuits > Ground InspectionLighting and HornsOpen30.Diagnostic Aids > Testing Circuits > Testing For OpensLighting and HornsOpen31.Diagnostic Aids > Testing Circuits > Testing For ShortsLighting and HornsOpen32.Diagnostic Aids > Testing Circuits > Voltage Drop TestsLighting and HornsOpen33.Diagram Information and Instructions > Harness Connector InformationLighting and HornsOpen34.Diagram Information and Instructions > Standardized Relay InformationLighting and HornsOpen35.Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen36.Diagram Information and Instructions > Wiring Diagram Symbol IDLighting and HornsOpen37.Electrical Diagrams > Fuse Panel DetailsLighting and HornsOpen38.Electrical Diagrams > Time Control SystemLighting and HornsOpen39.Fog/Driving Lamp β€” Diagnostic Aids > Examples of Common Electrical IncidentsLighting and HornsOpen40.Fog/Driving Lamp β€” Diagnostic Aids > Flow of DiagnosisLighting and HornsOpen41.Fog/Driving Lamp β€” Diagnostic Aids > Recommended Tools and EquipmentLighting and HornsOpen42.Fog/Driving Lamp β€” Diagnostic Aids > Testing Circuits > Ground InspectionLighting and HornsOpen43.Fog/Driving Lamp β€” Diagnostic Aids > Testing Circuits > Testing For OpensLighting and HornsOpen44.Fog/Driving Lamp β€” Diagnostic Aids > Testing Circuits > Testing For ShortsLighting and HornsOpen45.Fog/Driving Lamp β€” Diagnostic Aids > Testing Circuits > Voltage Drop TestsLighting and HornsOpen46.Fog/Driving Lamp β€” Diagram Information and Instructions > Harness Connector InformationLighting and HornsOpen47.Fog/Driving Lamp β€” Diagram Information and Instructions > Standardized Relay InformationLighting and HornsOpen48.Fog/Driving Lamp β€” Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen

Parts & Tools for This Job

Common parts shoppers buy for 1990 Nissan-Datsun 240SX Headlight.

As an Amazon Associate, AllOEMManuals earns from qualifying purchases. Prices and availability may vary.

Factory Service Tools

Turn This Into a Confident Next Step

Verify the likely fault first, then compare a quote before you approve expensive work.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.