K71 Transmission Control Module

2025 Chevrolet Tahoe Commercial, 4WDSECTION K71 Transmission Control Module
GM6608989Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Engine Wiring Harness
  • OEM Connector: 216741-0002
  • Service Connector: 85786014
  • Description: 66-Way F 0.64, 2.8 Series, Sealed (BK with BK Terminal Position Assurance)
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.