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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2019EXPRESS 2500 BASE, VAN CARGO EXTENDED, 6.0L ENG VIN GREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (K17-K71 (LV1))COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X1 (LWN)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
K20 Engine Control Module X1 (LWN)
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION K20 Engine Control Module X1 (LWN)
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 | 13579752 | J-35616-4A (PU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| II | 13584448 | J-35616-64B (LT BU) | J-38125-215A | 1719532-5 | Lear 7 | J | J |
| III | 13584530 | J-35616-4A (PU) | J-38125-215A | 4-964273-1 | Yazaki 15 | C | 5 |
| IV | 19369848 | J-35616-64B (LT BU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 2.5 | VT/GY | 1439 | Run/Crank Ignition 1 Voltage | III | - |
| 2 | 0.5 | VT/D-BU | 5291 | Powertrain Main Relay Fused Supply 2 | I | - |
| 3 | 0.5 | VT/D-BU | 5292 | Powertrain Main Relay Fused Supply 3 | I | - |
| 4 | 0.5 | RD/BN | 440 | Battery Positive Voltage | I | - |
| 5 | 6 | RD/YE | 2 | Battery Positive Voltage | IV | - |
| 6 | 6 | BK/WH | 451 | Signal Ground | IV | - |
| 7 | 0.5 | VT/YE | 5985 | Accessory Wakeup Serial Data | II | - |
| 8 - 10 | - | - | - | Not Occupied | - | - |
| 11 | 0.5 | BU/YE | 6861 | Water In Fuel Sensor Signal | II | - |
| 12 | - | - | - | Not Occupied | - | - |
| 13 | 0.5 | WH/RD | 1164 | Accelerator Pedal Position 5V Reference 1 | II | - |
| 14 | 0.5 | BN/RD | 1274 | Accelerator Pedal Position 5V Reference 2 | II | - |
| 15 | 0.5 | L-GN/WH | 1162 | Accelerator Pedal Position Signal 2 | II | - |
| 16 | 0.5 | BK/VT | 1272 | Accelerator Pedal Position Low Reference 2 | II | - |
| 17 | 0.5 | WH/BK | 2366 | Cooling Fan Control Relay Speed Signal | II | - |
| 18 | 0.5 | BN/WH | 419 | Check Engine Indicator Control | II | - |
| 19 | 0.5 | L-GN/BN | 507 | Wait To Start Indicator Control | II | - |
| 20 | - | - | - | Not Occupied | - | - |
| 21 | 0.5 | YE | 2928 | Fuel Metering Valve High Control | II | - |
| 22 | 0.5 | VT/L-GN | 439 | Run/Crank Ignition 1 Voltage | II | - |
| 23 | 0.5 | WH/D-BU | 6311 | Cruise/ETC/TCC Brake Signal | II | - |
| 24 | 0.5 | WH/GY | 1786 | Transmission Park/Neutral Signal 1 | II | - |
| 25 | 0.5 | L-GN/WH | 492 | Mass Air Flow Sensor Signal | II | - |
| 26 | 0.5 | BU/VT | 2364 | Cooling Fan Speed Signal | II | - |
| 27 | 0.5 | BK/D-BU | 1271 | Accelerator Pedal Position Low Reference 1 | II | - |
| 28 | 0.5 | YE/WH | 1161 | Accelerator Pedal Position Signal 1 | II | - |
| 29 - 32 | - | - | - | Not Occupied | - | - |
| 33 | 0.5 | WH/GY | 459 | A/C Compressor Clutch Relay Control | II | - |
| 34 - 35 | - | - | - | Not Occupied | - | - |
| 36 | 0.5 | BN/BK | 2929 | Fuel Metering Valve Low Control | II | - |
| 37 - 38 | - | - | - | Not Occupied | - | - |
| 39 | 0.5 | WH | 7494 | High Speed GMLAN Serial Data (-)3 | II | - |
| 40 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | II | - |
| 41 - 42 | - | - | - | Not Occupied | - | - |
| 43 | 0.5 | BK/BN | 5360 | Brake Apply Sensor Low Reference | II | - |
| 44 | 0.5 | WH | 5359 | Brake Apply Sensor Control | II | - |
| 45 | 0.5 | WH/D-BU | 6289 | Induction Air Temperature Sensor Signal | II | - |
| 46 | 0.5 | BN/RD | 2700 | A/C Pressure Sensor 5V Reference | II | - |
| 47 | 0.5 | L-GN | 380 | A/C Refrigerant Pressure Sensor Signal | II | - |
| 48 | 0.5 | BK/BN | 5514 | A/C Refrigerant Pressure Sensor Low Reference | II | - |
| 49 | - | - | - | Not Occupied | - | - |
| 50 | 0.5 | L-GN/GY | 465 | Fuel Pump Primary Relay Control | II | - |
| 51 | 0.5 | YE | 5991 | Powertrain Relay Coil Control | II | - |
| 52 - 53 | - | - | - | Not Occupied | - | - |
| 54 | 0.5 | D-BU/BK | 7493 | High Speed GMLAN Serial Data (+)3 | II | - |
| 55 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | II | - |
| 56 - 58 | - | - | - | Not Occupied | - | - |
| 59 | 0.5 | D-BU/YE | 5361 | Brake Apply Sensor Signal | II | - |
| 60 | 0.5 | BK/VT | 2760 | Intake Air Temperature Sensor Low Reference | II | - |
| 61 - 63 | - | - | - | Not Occupied | - | - |
| 64 | 0.75 | VT/BN | 2927 | Hydrocarbon Injector Low Control | II | - |
| 65 | - | - | - | Not Occupied | - | - |
| 66 | 0.5 | YE/BK | 625 | Starter Enable Relay Control | II | - |
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.