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 MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 21 (COMPONENT CONNECTOR END VIEWS (K73-Q77J))COMPONENT CONNECTOR END VIEWSK115 REDUCTANT CONTROL MODULE X2
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
K115 Reductant Control Module X2
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION K115 Reductant Control Module X2
WARNING: This page is about a different car, the 2018 GMC Savana 3500, 2018 GMC Savana 2500, 2018 Chevrolet Express 3500, and 2018 Chevrolet Express 2500. 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 | Not Required | Not Available | No Tool Required | Not Required | Not Required | Not Required | Not Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 1.0 | OG | 3103 | DEF Smart Pump Control | I | - |
| 2 | 1.0 | GN | 3875 | DEF Smart Pump Control Phase 2 | I | - |
| 3 | 1.0 | BU | 3876 | DEF Smart Pump Control Phase 3 | I | - |
| 4 | 1.0 | VT | 4318 | DEF Tank Heater Low Control | I | - |
| 5 | 1.0 | BK | 3104 | DEF Smart Pump Low Reference | I | - |
| 6 | 0.5 | OG | 7285 | Diesel Exhaust Fluid Liquid Quality Temperature Sensor Low Reference | I | - |
| 7 | 1.0 | YE | 3922 | DEF Heater Supply 2 | I | - |
| 8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | OG | 3244 | DEF Tank Temperature Sensor Signal | I | - |
| 10 | 0.5 | GN | 3245 | DEF Tank Temperature Sensor Low Reference | I | - |
| 11 | 1.0 | YE | 3921 | DEF Heater Supply 1 | I | - |
| 12 | 0.5 | BU | 3106 | DEF Pressure Sensor 5V Reference | I | - |
| 13 | 0.5 | GY | 3108 | DEF Pressure Sensor Signal | I | - |
| 14 | 0.5 | YE | 3107 | DEF Pressure Sensor Low Reference | I | - |
| 15 | 0.5 | VT | 6136 | Control | I | - |
| 16 | 0.5 | BU | 3028 | DEF Tank Level Sensor Signal | I | - |
| 17 | 0.5 | VT | 3029 | DEF Tank Level Sensor Low Reference | I | - |
| 18 | 0.5 | GN | 7487 | Sensor Signal | I | - |
| 19 | 0.5 | YE | 53 | Diesel Exhaust Fluid Quality Signal | I | - |
| 20 | 1.0 | VT | 4319 | DEF Line Heater Low Control | 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.