Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2018REGAL BASEREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (P17-S66P)COMPONENT CONNECTOR END VIEWSS30 HEADLAMP SWITCH
2018 Buick Regal Base
S30 Headlamp Switch
2018 Buick Regal BaseSECTION S30 Headlamp Switch
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 13575867 | J-35616-64B (LT BU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| II | 13575867 | J-35616-64B (LT BU) | J-38125-215A | SAIT-A03T-M064 | Yazaki 14 | P | P |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.13 | WH | 103 | Headlamp Switch On Signal | I | - |
| 2 | 0.35 | YE | 6817 | LED Backlight Dimming Control | II | - |
| 3 | 0.13 | GN/BN | 306 | Headlamp Switch Headlamps Off Signal Control | I | - |
| 4 | - | - | - | Not Occupied | - | - |
| 5 | 0.13 | GY | 13 | Headlamp Switch Park Lamp Signal | I | - |
| 6 | - | - | - | Not Occupied | - | - |
| 7 | 0.13 | BK | 5005 | Instrument Panel Lamp Dimmer Switch Low Reference | I | - |
| 8 | 0.35 | BK | 1650 | Ground | II | - |
| 9 | - | - | - | Not Occupied | - | - |
| 10 | 0.35 | BU/GY | 192 | Front Fog Lamp Switch Signal | II | T3U |
| 11 | 0.13 | YE | 44 | Instrument Panel Lamp Dimmer Switch Signal | I | - |
| 12 | 0.13 | BU | 1688 | 5V Reference | I | - |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.