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 MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 16 (COMPONENT CONNECTOR END VIEWS (Q37LR - S79P))COMPONENT CONNECTOR END VIEWSS30 HEADLAMP SWITCH
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
S30 Headlamp Switch
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION S30 Headlamp Switch
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
Connector Part Information
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Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 19300660 | J-35616-64B (LT BU) | J-38125-12A | Not Available | Not Available | Not Available | Not Available |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.35 | WH/VT | 103 | Headlamp Switch On Signal | I | - |
| 2 | 0.5 | YE | 6817 | LED Backlight Dimming Control | I | - |
| 3 | 0.35 | GN/BN | 306 | Headlamp Switch Headlamps Off Signal Control | I | - |
| 4 | - | - | - | Not Occupied | - | - |
| 5 | 0.35 | GN/GY | 13 | Headlamp Switch Park Lamp Signal | I | - |
| 6 | 0.35 | BU/GY | 187 | Rear Fog Lamp Switch Signal | I | - |
| 7 | 0.35 | BK/YE | 5005 | Instrument Panel Lamp Dimmer Switch Low Reference | I | - |
| 8 | 0.75 | BK | 1850 | Ground | I | - |
| 9 | - | - | - | Not Occupied | - | - |
| 10 | 0.35 | BU/GY | 192 | Front Fog Lamp Switch Signal | I | - |
| 11 | 0.35 | YE/GY | 44 | Instrument Panel Lamp Dimmer Switch Signal | I | - |
| 12 | 0.35 | BU/RD | 1688 | 12V 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.