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 (K111 - P19W)COMPONENT CONNECTOR END VIEWSK119 CNG CONTROL MODULE (LC8)
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, Gas
K119 CNG Control Module (LC8)
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, GasSECTION K119 CNG Control Module (LC8)
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 | No Tool Required | No Tool Required | Not Required | Not Required | Not Required | Not Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | BU/OG | - | Coolant Temperature Input | I | - |
| 2 | 0.5 | RD/WH | - | 5 - Volt Output | I | - |
| 3 | 0.5 | BU/GN | - | Fuel Pressure Input | I | - |
| 4 | 0.5 | BU/RD | - | CNG Tank Temperature Input | I | - |
| 5 - 7 | - | - | - | Not Occupied | - | - |
| 8 | 0.5 | WH/GN | - | Alternative Fuel Enable Relay | I | - |
| 9 | 0.5 | WH | - | Serial K | I | - |
| 10 | 0.5 | TN/BK | - | High Speed GMLAN Serial Data Bus (+) | I | - |
| 11 | - | - | - | Not Occupied | - | - |
| 12 | 0.5 | RD | - | Power | I | - |
| 13 | 0.5 | GN/RD | - | Fuel Select Indicator | I | - |
| 14 | 0.5 | GN/BK | - | CNG Tank Lock #1 Off Control | I | - |
| 15 | 0.5 | WH/BK | - | Alternative Fuel Injector 1 Control | I | - |
| 16 | 0.5 | WH/BN | - | Alternative Fuel Injector 2 Control | I | - |
| 17 | 0.5 | WH/RD | - | Alternative Fuel Injector 3 Control | I | - |
| 18 | 0.5 | WH/OG | - | Alternative Fuel Injector 4 Control | I | - |
| 19 | 0.5 | BK | - | Alternative Fuel Injector Ground | I | - |
| 20 | 0.5 | GN | - | Alternative Fuel Enable Relay | I | - |
| 21 | 0.5 | WH/YE | - | Alternative Fuel Injector 5 Control | I | - |
| 22 | 0.5 | WH/GN | - | Alternative Fuel Injector 6 Control | I | - |
| 23 | 0.5 | WH/BU | - | Alternative Fuel Injector 7 Control | I | - |
| 24 | 0.5 | WH/VT | - | Alternative Fuel Injector 8 Control | I | - |
| 25 | 0.5 | GN | - | OEM Injector Input 5 | I | - |
| 26 | 0.5 | BU | - | OEM Injector Input 6 | I | - |
| 27 | 0.5 | YE | - | OEM Injector Input 7 | I | - |
| 28 | 0.5 | BU | - | OEM Injector Input 8 | I | - |
| 29 | - | - | - | Not Occupied | - | - |
| 30 | 0.5 | BU/BK | - | Fuel Temp Sensor Input | I | - |
| 31 | 0.5 | GN/BU | - | Fuel Select Switch | I | - |
| 32 - 35 | - | - | - | Not Occupied | - | - |
| 36 | 0.5 | BU/YE | - | CNG Tank Pressure Input | I | - |
| 37 | 0.5 | GN/WH | - | CNG Switched 12 Volt Signal | I | - |
| 38 | 0.5 | TN | - | High Speed GMLAN Serial Data Bus (-) | I | - |
| 39 | 0.5 | BK | - | Ground | I | - |
| 40 | 0.5 | PK | - | OEM Injector Positive Voltage Bank 1 | I | - |
| 41 | 0.5 | PK/WH | - | OEM Injector Positive Voltage Bank 2 | I | - |
| 42 | 0.5 | GN/BK | - | CNG Tank Cut-Off 2 Control | I | - |
| 43 | 0.5 | TN | - | OEM Injector 1 Output | I | - |
| 44 | 0.5 | TN/GN | - | OEM Injector 1 Input | I | - |
| 45 | 0.5 | PK/BK | - | OEM Injector 2 Output | I | - |
| 46 | 0.5 | PK/GN | - | OEM Injector 2 Input | I | - |
| 47 | 0.5 | BK | - | CNG Injector Ground | I | - |
| 48 | 0.5 | GN | - | Switched Battery Positive | I | - |
| 49 | 0.5 | TN/WH | - | OEM Injector 3 Output | I | - |
| 50 | 0.5 | TN/BU | - | OEM Injector 3 Input | I | - |
| 51 | 0.5 | OG/BK | - | EVAP Canister Purge Solenoid Control | I | - |
| 52 | 0.5 | OG/GN | - | OEM Injector 4 Input | I | - |
| 53 | 0.5 | GN/BK | - | OEM Injector 5 Output | I | - |
| 54 | 0.5 | BU/BK | - | OEM Injector 6 Output | I | - |
| 55 | 0.5 | YE/BK | - | OEM Injector 7 Output | I | - |
| 56 | 0.5 | BU/WH | - | OEM Injector 8 Output | 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.