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 MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 3 (COMPONENT CONNECTOR END VIEWS - K20 X3 LGZ TO K109)COMPONENT CONNECTOR END VIEWSK38 CHASSIS CONTROL MODULE (LCV)
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
K38 Chassis Control Module (LCV)
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION K38 Chassis Control Module (LCV)
WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. 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 | 13576407 | J-35616-4A (PU) | J-38125-553 | 15304720 | Delphi 19 | 4 | 5 |
| II | 13578924 | J-35616-64B (LT BU) | J-38125-215A | SAITS-A03T-M064 | Yazaki 14 | 9 | 9 |
| III | 13579766 | 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 | 2.5 | RD/VT | 1940 | Battery Positive Voltage | I | - |
| 2 | - | - | - | Not Occupied | - | - |
| 3 | 0.5 | BN | 3891 | Aero Shutter Control | II | - |
| 4 | - | - | - | Not Occupied | - | - |
| 5 | 0.5 | L-BU | 2500 | High Speed GMLAN Serial Data (+) 1 | II | - |
| 6 | 0.5 | L-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 | L-BU/WH | 7446 | Fuel Line Pressure Sensor Signal | II | - |
| 11 | - | - | - | Not Occupied | - | - |
| 12 | 0.5 | BN | 3891 | Aero Shutter Control | II | - |
| 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 | GY | 5660 | Fuel Pump Controller Data Out Signal | II | - |
| 21 | 0.75 | VT/GY | 139 | Run/Crank Ignition 1 Voltage | III | - |
| 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 | 7444 | Fuel System Control Module Shield Ground | II | - |
| 25 | 2.5 | BK | 650 | 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.