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 MANUALSCHEVROLET2014EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISQUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - K17 (EXCEPT JL4) TO K9 (X1)COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE (ECM) X1 & X2K20 ENGINE CONTROL MODULE X3 (LGH)
2014 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
K20 Engine Control Module X3 (LGH)
2014 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION K20 Engine Control Module X3 (LGH)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 13575575 | J-35616-64B (L-BU) | J-38125-213 | 33467-0005 | 23 | Pins: 2, 4, 6-7, 9-14, 15-21, 24, 27-32, 36-38, 40, 44, 46, 48, 54-55, 60-61, 65-68 - J | J |
| II | Pending | J-35616-35 (VT) | J-38125-11A | 7116-4152-02 | 9 | A | 5 |
K20 Engine Control Module X3 (LGH)
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | - | - | - | Not Occupied | - | - |
| 2 | 0.5 | BU/YE | 6861 | Water In Fuel Sensor Signal | I | - |
| 3 | - | - | - | Not Occupied | - | - |
| 4 | 0.5 | TN/WH | 331 | Oil Pressure Sensor Signal | I | - |
| 5 | 0.5 | YE | 5361 | Brake Apply Sensor Signal | - | - |
| 6 | 0.5 | PU/WH | 7584 | Exhaust Gas Recirculation Temperature Sensor 1 Supply Voltage | I | - |
| 7 | 0.5 | D-BU | 7583 | Exhaust Gas Recirculation Temperature Sensor 2 Supply Voltage | I | - |
| 8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | BN/WH | 5763 | Exhaust Gas Recirculation Valve Sensor Signal | I | - |
| 10 | 0.5 | YE | 5947 | Variable Nozzle Turbo Position Sensor Signal | I | - |
| 11 | 0.5 | YE | 1578 | Fuel Temperature Signal | I | - |
| 12 | 0.5 | BN | 3681 | Charge Air Cooler Outlet Temperature Sensor Signal | I | - |
| 13 | 0.5 | TN | 3680 | Charge Air Cooler Outlet Temperature Sensor Return | I | - |
| 14 | 0.5 | TN | 2917 | 5 Volt Reference | I | - |
| 15 | 0.5 | WH | 5359 | Brake Apply Sensor Supply Voltage | I | - |
| 16 | 0.5 | GY | 2704 | 5 Volt Reference | I | - |
| 17 | 0.5 | D-BU | 6863 | Low Reference | I | - |
| 18 | 0.5 | D-BU | 5277 | Exhaust Gas Temperature Sensor 1 Signal | I | - |
| 19 | 0.5 | D-GN | 485 | Throttle Position Sensor Signal 1 | I | - |
| 20 | 0.5 | YE | 2918 | Fuel Rail Pressure Sensor Signal | I | - |
| 21 | 0.5 | L-GN | 432 | Manifold Absolute Pressure Sensor Signal | I | - |
| 22-23 | - | - | - | Not Occupied | - | - |
| 24 | 0.5 | YE | 410 | Engine Coolant Temperature Sensor Signal | I | - |
| 25-26 | - | - | - | Not Occupied | - | - |
| 27 | 0.5 | BN/GY | 7072 | Sensor Fuel Temperature 1 Signal | I | - |
| 28 | 0.5 | D-GN | 3683 | Charge Air Cooler Inlet Temperature Sensor Signal | I | - |
| 29 | 0.5 | TN/BK | 3682 | Charge Air Cooler Inlet Temperature Sensor Return | I | - |
| 30 | 0.5 | GY | 2705 | 5 Volt Reference | I | - |
| 31 | 0.5 | D-BU | 6259 | 5 Volt Reference | I | - |
| 32 | 0.5 | GY | 2701 | 5 Volt Reference | I | - |
| 33-35 | - | - | - | Not Occupied | - | - |
| 36 | 0.5 | OG/BK | 2919 | Low Reference | I | - |
| 37 | 0.5 | OG/BK | 469 | Low Reference | I | - |
| 38 | 0.5 | BN | 5360 | Brake Apply Sensor Low Reference | I | - |
| 39 | - | - | - | Not Occupied | - | - |
| 40 | 0.5 | TN | 2761 | Low Reference | I | - |
| 41-43 | - | - | - | Not Occupied | - | - |
| 44 | 0.5 | GY/BK | 5765 | Fuel Filter Pressure Switch Signal | I | - |
| 45 | - | - | - | Not Occupied | - | - |
| 46 | 0.5 | BN/WH | 7073 | Sensor Fuel Temperature 1 Return | I | - |
| 47 | - | - | - | Not Occupied | - | - |
| 48 | 0.5 | BN | 6062 | Low Reference | I | - |
| 49 | 0.8 | GY/WH | 4908 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 8 | I | - |
| 50 | 0.8 | D-BU/WH | 4902 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2 | I | - |
| 51 | 0.8 | D-BU | 4802 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 2 | I | - |
| 52 | 0.8 | L-BU | 4805 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 5 | I | - |
| 53 | - | - | - | Not Occupied | - | - |
| 54 | 0.5 | L-GN/BK | 5746 | Exhaust Gas Recirculation Valve Motor Low Signal | I | - |
| 55 | 0.5 | OG/BK | 5764 | Exhaust Gas Recirculation Valve Motor High Signal | I | - |
| 56 | 0.8 | BN | 582 | Throttle Actuator Control Close | I | - |
| 57 | 0.8 | YE | 581 | Throttle Actuator Control Open | I | - |
| 58-59 | - | - | - | Not Occupied | - | - |
| 60 | 0.5 | GY/BK | 6272 | Low Reference | I | - |
| 61 | 0.5 | WH/BK | 6271 | CKP Sensor Signal | I | - |
| 62-64 | - | - | - | Not Occupied | - | - |
| 65 | 0.5 | D-BU/WH | 6265 | CMP Sensor Signal | I | - |
| 66 | 0.5 | BN | 6266 | Low Reference | I | - |
| 67 | 0.5 | BN | 6274 | Low Reference | I | - |
| 68 | 0.5 | WH | 6275 | Low Reference | I | - |
| 69 | 0.8 | D-GN/WH | 4903 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3 | I | - |
| 70 | 0.8 | L-GN/WH | 4905 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 5 | I | - |
| 71 | 0.8 | D-GN | 4803 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 3 | I | - |
| 72 | 0.8 | GY | 4808 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 8 | I | - |
| 73 | 3 | BK/WH | 451 | Ground | - | - |
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.