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 20 (COMPONENT CONNECTOR END VIEWS (K17-K71))COMPONENT CONNECTOR END VIEWSK38 CHASSIS CONTROL MODULE
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN G
K38 Chassis Control Module
2019 Chevrolet Express 2500 Base, Van Cargo Extended, 6.0L Eng VIN GSECTION K38 Chassis Control Module
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 | 13575408 | J-35616-4A (PU) | J-38125-553 | Not Available | Not Available | Not Available | Not Available |
| II | 13578883 | J-35616-64B (LT BU) | J-38125-215A | SAITS-A03T-M064 | Yazaki 14 | 9 | 9 |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 3 | RD/WH | 1940 | Battery Positive Voltage | I | - |
| 2 - 4 | - | - | - | Not Occupied | - | - |
| 5 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | II | - |
| 6 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | II | - |
| 7 | - | - | - | Not Occupied | - | - |
| 8 | 0.5 | VT/YE | 5985 | Accessory Wakeup Serial Data | II | - |
| 9 | - | - | - | Not Occupied | - | - |
| 10 | 0.5 | BU/WH | 7446 | Fuel Line Pressure Sensor Signal | II | - |
| 11 - 12 | - | - | - | Not Occupied | - | - |
| 13 | 2.5 | GY | 120 | Fuel Pump Control | I | - |
| 14 - 16 | - | - | - | Not Occupied | - | - |
| 17 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | II | - |
| 18 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | II | - |
| 19 | - | - | - | Not Occupied | - | - |
| 20 | 0.5 | GN/GY | 465 | Fuel Pump Primary Relay Control | II | - |
| 21 | 0.5 | VT/GN | 2739 | Run/Crank Ignition 1 Voltage | II | - |
| 22 | 0.5 | BN/RD | 7445 | Fuel Line Pressure Sensor 5V Reference | II | - |
| 23 | 0.5 | BK/YE | 7447 | Fuel Line Pressure Sensor Low Reference | II | - |
| 24 | 0.5 | BK | 1350 | Ground | II | - |
| 25 | 2 | BK | 2150 | Ground | I | - |
| 26 - 37 | - | - | - | Not Occupied | - | - |
| 38 | 2.5 | BK/GN | 1580 | Fuel Pump Low Reference | I | - |
RENDER: 1.0x
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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.