Wiring Diagram Cluster

2010 Scion tC 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

tC L4-2.4L (2AZ-FE)

Total Vehicle Diagrams

949

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 2010 Scion tC 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.

2010 Scion tC Testing and Inspection 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.Headlamp β€” Connector Views > Headlamp (High)Lighting and HornsOpen2.Headlamp β€” Connector Views > Headlamp (Low)Lighting and HornsOpen3.Headlamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > Electronic Circuit Inspection ProcedureLighting and HornsOpen4.Headlamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > General InformationLighting and HornsOpen5.Headlamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > How To Proceed With TroubleshootingLighting and HornsOpen6.Headlamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Continuity and Resistance CheckLighting and HornsOpen7.Headlamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Disconnection of Male and Female ConnectorsLighting and HornsOpen8.Headlamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Finding A Short CircuitLighting and HornsOpen9.Headlamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > How to Replace TerminalLighting and HornsOpen10.Headlamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Voltage CheckLighting and HornsOpen11.Headlamp β€” Diagram Information and Instructions > Abbreviations Used Within DiagramsLighting and HornsOpen12.Headlamp β€” Diagram Information and Instructions > Symbols Used Within DiagramsLighting and HornsOpen13.Headlamp β€” Diagram Information and Instructions > Wiring Color CodesLighting and HornsOpen14.Headlamp β€” Electrical DiagramsLighting and HornsOpen15.Connector Views > Automatic Lighting System DiodeGeneralOpen16.Connector Views > Connector Views By Connector Number > D-H > H1 (Headlamp (LH High))GeneralOpen17.Connector Views > Connector Views By Connector Number > D-H > H2 (Headlamp (LH Low))GeneralOpen18.Connector Views > Connector Views By Connector Number > D-H > H3 (Headlamp (RH High))GeneralOpen19.Connector Views > Connector Views By Connector Number > D-H > H4 (Headlamp (RH Low))GeneralOpen20.Connector Views > Daytime Running Lamp RelayGeneralOpen21.Connector Views > Headlamp > Headlamp RelayGeneralOpen22.Connector Views > Headlamp > System Diagram > Headlamp (High)GeneralOpen23.Connector Views > Headlamp > System Diagram > Headlamp (Low)GeneralOpen24.Electrical Diagrams > HeadlampGeneralOpen25.Backup Lamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > Electronic Circuit Inspection ProcedureLighting and HornsOpen26.Backup Lamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > General InformationLighting and HornsOpen27.Backup Lamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > How To Proceed With TroubleshootingLighting and HornsOpen28.Backup Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Continuity and Resistance CheckLighting and HornsOpen29.Backup Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Disconnection of Male and Female ConnectorsLighting and HornsOpen30.Backup Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Finding A Short CircuitLighting and HornsOpen31.Backup Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > How to Replace TerminalLighting and HornsOpen32.Backup Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Voltage CheckLighting and HornsOpen33.Backup Lamp β€” Diagram Information and Instructions > Abbreviations Used Within DiagramsLighting and HornsOpen34.Backup Lamp β€” Diagram Information and Instructions > Symbols Used Within DiagramsLighting and HornsOpen35.Backup Lamp β€” Diagram Information and Instructions > Wiring Color CodesLighting and HornsOpen36.Backup Lamp β€” Electrical DiagramsLighting and HornsOpen37.Courtesy Lamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > Electronic Circuit Inspection ProcedureLighting and HornsOpen38.Courtesy Lamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > General InformationLighting and HornsOpen39.Courtesy Lamp β€” Diagnostic Aids > How To Troubleshoot ECU Controlled Systems > How To Proceed With TroubleshootingLighting and HornsOpen40.Courtesy Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Continuity and Resistance CheckLighting and HornsOpen41.Courtesy Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Disconnection of Male and Female ConnectorsLighting and HornsOpen42.Courtesy Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Finding A Short CircuitLighting and HornsOpen43.Courtesy Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > How to Replace TerminalLighting and HornsOpen44.Courtesy Lamp β€” Diagnostic Aids > How to Troubleshoot Electrical Circuits > Voltage CheckLighting and HornsOpen45.Courtesy Lamp β€” Diagram Information and Instructions > Abbreviations Used Within DiagramsLighting and HornsOpen46.Courtesy Lamp β€” Diagram Information and Instructions > Symbols Used Within DiagramsLighting and HornsOpen47.Courtesy Lamp β€” Diagram Information and Instructions > Wiring Color CodesLighting and HornsOpen48.Courtesy Lamp β€” Electrical DiagramsLighting and HornsOpen