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 MANUALSGMC2016SIERRA 3500 HD SLE, 4D CAB CHASSIS, 6.6L ENG VIN 8, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - K33X3 TO K111COMPONENT CONNECTOR END VIEWSK38 CHASSIS CONTROL MODULE
2016 GMC Sierra 3500 HD SLE, 4D Cab Chassis, 6.6L Eng VIN 8, 4WD
K38 Chassis Control Module
2016 GMC Sierra 3500 HD SLE, 4D Cab Chassis, 6.6L Eng VIN 8, 4WDSECTION K38 Chassis Control Module
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 | 19119381 | J-35616-14 (GN) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| II | 19119772 | J-35616-35 (VT) | J-38125-557 | 1241388-1 | Lear 17 | E | C |
| III | 19301775 | J-35616-40 (BU) | J-38125-556 | Not Available | Not Available | Not Available | Not Available |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.75 | RD/WH | 2040 | Battery Positive Voltage | III | - |
| 2 - 12 | - | - | - | Not Occupied | - | - |
| 13 | 0.75 | BK | 1750 | Ground | III | - |
| 14 | 0.5 | VT/YE | 5985 | Accessory Wakeup Serial Data | I | - |
| 15 | - | - | - | Not Occupied | - | - |
| 16 | 0.5 | BU/RD | 7632 | Integrated Trailer Brake Controller Switch 5V Reference | I | - |
| 17 | - | - | - | Not Occupied | - | - |
| 18 | 0.5 | BN | 7634 | Integrated Trailer Brake Controller Redundant Manual Apply Signal | I | - |
| 19 | 0.5 | BK/BN | 7631 | Integrated Trailer Brake Controller Switch Low Reference | I | - |
| 20 | 0.5 | YE | 7635 | Integrated Trailer Brake Controller Manual Apply Signal | I | - |
| 21 | 0.5 | GN/BK | 7633 | Integrated Trailer Brake Controller User Gain Signal | I | - |
| 22 | 0.5 | YE/BK | 2224 | Trailer Brake Enable Signal | I | - |
| 23 | 0.5 | WH/BK | 2223 | Trailer Brake Control Signal | I | - |
| 24 | - | - | - | Not Occupied | - | - |
| 25 | 0.75 | VT/GN | 439 | Run/Crank Ignition 1 Voltage | II | - |
| 26 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | I | - |
| 27 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | I | - |
| 28 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | I | - |
| 29 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | I | - |
| 30 | 0.5 | GN/VT | 4114 | Local Interconnect Network Serial Data Bus 14 | I | - |
| 31 - 38 | - | - | - | Not Occupied | - | - |
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.