K171 Hands-Free Liftgate Sensor Control Module X2

2019 Buick Envision BaseSECTION K171 Hands-Free Liftgate Sensor Control Module X2
GM4256077Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Rear Fascia
  • OEM Connector: 4-2272004-1
  • Service Connector: Service by Harness - See Part Catalog
  • Description: 3-Way F 1.2 MCP Series, Sealed (BN)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool Service Terminal Tray Name Core Crimp Insulation Crimp
I Not Required J-35616-16 (LT GN) No Tool Required Not Required Not Required Not Required Not Required
Pin Size Color Circuit Function Terminal Type ID Option
1 0.35 GN/BN 4118 Local Interconnect Network Serial Data Bus 18 I -
2 0.5 RD/YE 5840 Battery Positive Voltage I -
3 0.5 BK 2550 Ground 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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.