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 MANUALSCHEVROLET2025TAHOE COMMERCIAL, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (K56-K164)COMPONENT CONNECTOR END VIEWSK71 TRANSMISSION CONTROL MODULE
2025 Chevrolet Tahoe Commercial, 4WD
K71 Transmission Control Module
2025 Chevrolet Tahoe Commercial, 4WDSECTION K71 Transmission Control Module
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | 13587518 | J-35616-35 (VT) | J-38125-11A |
| II | 19351723 | J-35616-64B (L-BU) | J-38125-213 |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | VT / WH | 422 | Torque Converter Clutch Solenoid Valve Control | II | - |
| 2 | 0.5 | GY / GN | 6403 | Clutch Solenoid Valve D Control | II | - |
| 3 | 0.5 | WH / BU | 4507 | Transmission Clutch H Control | II | - |
| 4 | 0.5 | WH | 4508 | Transmission Clutch G Control | II | - |
| 7 | 0.5 | YE / GN | 4170 | Transmission Output Shaft Speed Sensor Circuit 9V Reference | II | - |
| 8 | 0.5 | YE / BU | 4171 | Transmission Input Shaft Speed Sensor Circuit 9V Reference | II | - |
| 12 | 0.5 | GN / YE | 6353 | Input Speed Signal | II | - |
| 13 | 0.5 | GN / VT | 4510 | Transmission Intermediate Speed Signal | II | - |
| 14 | 0.5 | GY / BU | 6358 | Output Speed Signal | II | - |
| 15 | 0.5 | BN / BU | 6254 | Transmission Input Speed Sensor Signal | II | - |
| 17 | 0.5 | GN / WH | 1530 | Transmission Line Pressure Control Solenoid Valve Control | II | - |
| 18 | 0.5 | YE / BN | 6404 | Clutch Solenoid Valve E Control | II | - |
| 19 | 0.5 | GY | 6402 | Clutch Solenoid Valve C Control | II | - |
| 20 | 0.5 | VT | 4509 | Transmission Clutch F Control | II | - |
| 21 | 0.5 | YE | 2159 | Park Inhibit Solenoid Assembly Control | II | - |
| 22 | 0.5 | GN / BK | 7819 | Default Disable Solenoid Control | II | - |
| 24 | 0.5 | GN | 2968 | Transmission Auxiliary Fluid Pump Control | II | - |
| 28 | 0.5 | BK / BN | 586 | Transmission Fluid Temperature Sensor Low Reference | II | - |
| 31 | 0.75 | GN / VT | 4621 | Engine Control Module LIN Bus 1 | II | - |
| 33 | 0.5 | GN / GY | 6387 | Transmission High Side Driver 1 Control | II | - |
| 35 | 0.5 | VT / BK | 2139 | Run/Crank Ignition 1 Voltage | II | - |
| 37 | 0.5 | BU / YE | 4979 | AUTOSAR CAN Bus [+] 2 Serial Data | II | - |
| 38 | 0.5 | WH | 4978 | AUTOSAR CAN Bus [-] 2 Serial Data | II | - |
| 49 | 0.5 | GY / BN | 6388 | Transmission High Side Driver 2 Control | II | - |
| 53 | 0.5 | BU / YE | 4979 | AUTOSAR CAN Bus [+] 2 Serial Data | II | - |
| 54 | 0.5 | WH | 4978 | AUTOSAR CAN Bus [-] 2 Serial Data | II | - |
| 59 | 0.5 | VT / WH | 6319 | Electronic Transmission Range Select Out of Park Switch 2 Signal | II | - |
| 61 | 0.5 | WH / YE | 6317 | Electronic Transmission Range Select Out of Park Switch Signal | II | - |
| 62 | 0.5 | BN | 3706 | Electronic Transmission Range Select Switch Analog Signal 1 | II | - |
| 63 | 0.5 | BN / WH | 585 | Transmission Fluid Temperature Sensor Signal | II | - |
| 65 | 1 | BK / WH | 6151 | Engine Control Module Ground | I | - |
| 66 | 1 | RD / GN | 1840 | Battery Positive Voltage | I | - |
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.