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 MANUALSCHEVROLET2018SILVERADO 2500 HD WT, 2D PICKUP, 6.0L ENG VIN G, RWD, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (K20 - K85)COMPONENT CONNECTOR END VIEWSK33 HVAC CONTROL MODULE X1
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, Gas
K33 HVAC Control Module X1
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, GasSECTION K33 HVAC Control Module X1
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 | Not Required | J-35616-64B (LT BU) | No Tool Required | Not Required | Not Required | Not Required | Not Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | - | - | - | Not Occupied | - | - |
| 2 | 0.35 | GY/GN | 7565 | Windscreen Temp Sensor Signal | I | - |
| 3 | - | - | - | Not Occupied | - | - |
| 4 | 0.35 | BU/WH | 734 | Inside Air Temperature Sensor Signal | I | - |
| 5 | 0.35 | YE/BU | 3197 | Humidity Temperature Sensor Signal | I | - |
| 6 | 0.35 | YE/RD | 597 | 5V Reference | I | - |
| 7 | 0.35 | BK/BU | 7566 | Humidity/Windscreen Temp Sensor Low Reference | I | - |
| 8 - 11 | - | - | - | Not Occupied | - | - |
| 12 | 0.35 | GY/BU | 7564 | Humidity Sensor Signal | I | - |
| 13 | 0.35 | YE/VT | 1783 | Twilight Sentinel Delay Signal | I | -UE1 |
| 14 | 0.35 | YE/VT | 1783 | Twilight Sentinel Delay Signal | I | UE1 |
| 15 - 19 | - | - | - | Not Occupied | - | - |
| 20 | 0.35 | GY | 590 | Solar Sensor Driver Signal | 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.