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 17 (COMPONENT CONNECTOR END VIEWS (K20 - K60))COMPONENT CONNECTOR END VIEWSK38A CHASSIS CONTROL MODULE - AUXILIARY
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
K38A Chassis Control Module - Auxiliary
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION K38A Chassis Control Module - Auxiliary
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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 | 19119772 | J-35616-35 (VT) | J-38125-557 | 1241388-1 | Lear 17 | E | C |
| II | 19301775 | J-35616-40 (BU) | J-38125-556 | Not Available | Not Available | Not Available | Not Available |
| III | 19301776 | J-35616-14 (GN) | J-38125-215A | 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 | II | - |
| 2 | 0.5 | GN/RD | 1214 | Right Rear Strut Position Sensor 5V Reference | III | Z95 |
| 3 | 0.5 | BK/YE | 1215 | Right Rear Strut Position Sensor Low Reference | III | Z95 |
| 4 | 0.5 | GN/GY | 1216 | Right Rear Strut Position Sensor Signal | III | Z95 |
| 5 | 0.5 | YE/RD | 1208 | Left Rear Strut Position Sensor 5V Reference | III | Z95 |
| 6 | 0.5 | BK/GN | 1209 | Left Rear Strut Position Sensor Low Reference | III | Z95 |
| 7 | 0.5 | GN/WH | 1210 | Left Rear Strut Position Sensor Signal | III | Z95 |
| 8 | 0.5 | BU/RD | 6076 | Real Time Damping Air Pressure Sensor 5V Reference | III | Z95 |
| 9 | 0.5 | BK/YE | 6077 | Real Time Damping Air Pressure Sensor Low Reference | III | Z95 |
| 10 | 0.5 | YE/GN | 6075 | Real Time Damping Air Pressure Sensor Signal | III | Z95 |
| 11 - 12 | - | - | - | Not Occupied | - | - |
| 13 | 0.75 | BK | 1750 | Ground | II | - |
| 14 | 0.5 | VT/YE | 5985 | Accessory Wakeup Serial Data | III | - |
| 15 | - | - | - | Not Occupied | - | - |
| 16 | 0.5 | BU/RD | 7632 | Integrated Trailer Brake Controller Switch 5V Reference | III | - |
| 17 | - | - | - | Not Occupied | - | - |
| 18 | 0.5 | BN | 7634 | Integrated Trailer Brake Controller Redundant Manual Apply Signal | III | - |
| 19 | 0.5 | BK/YE | 7631 | Integrated Trailer Brake Controller Switch Low Reference | III | - |
| 20 | 0.5 | YE | 7635 | Integrated Trailer Brake Controller Manual Apply Signal | III | - |
| 21 | 0.5 | GN/BK | 7633 | Integrated Trailer Brake Controller User Gain Signal | III | - |
| 22 | 0.5 | YE/BK | 2224 | Trailer Brake Enable Signal | III | - |
| 23 | 0.5 | WH/BK | 2223 | Trailer Brake Control Signal | III | - |
| 24 | - | - | - | Not Occupied | - | - |
| 25 | 0.75 | VT/GN | 439 | Run/Crank Ignition 1 Voltage | I | - |
| 26 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | III | - |
| 27 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data (+) 1 | III | - |
| 28 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | III | - |
| 29 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data (-) 1 | III | - |
| 30 | 0.5 | GN/VT | 4114 | Local Interconnect Network Serial Data Bus 14 | III | - |
| 31 - 34 | - | - | - | Not Occupied | - | - |
| 35 | 0.5 | BN/YE | 1112 | Damping Relay Coil Control | III | Z95 |
| 36 | 0.75 | WH/GN | 320 | Automatic Level Control Exhaust Solenoid Control | III | Z95 |
| 37 - 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.