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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> Inline Harness Connector End Views (X183 - X258) >> Inline Harness Connector End Views >> X257 Instrument Panel Harness to HVAC Harness

X257 Instrument Panel Harness to HVAC Harness

GM4254030Courtesy of GENERAL MOTORS COMPANY
GM5355759Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 35327186
  • Service Connector: 13532428
  • Description: 10-Way F 1.2 Series (BK)
Connector Part Information
  • Harness Type: HVAC
  • OEM Connector: 13530136
  • Service Connector: Service by Harness -
  • Description: 10-Way M 1.2 MCON Series (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I 84962854 J-35616-12 (BU) J-38125-215A
II Not required J-35616-13 (BU) No Tool Required
Pin Size Color Circuit Terminal Type ID Option Function Pin Size Color Circuit Terminal Type ID Option
1 - - - - - Not Occupied 1 - - - - -
2 0.5 BK 1050 I - Ground 2 0.5 BK 1050 II -
3 - 4 - - - - - Not Occupied 3 - 4 - - - - -
5 0.35 GY 6137 I - A/C Evaporator Temperature Sensor Signal 5 0.35 BN 6137 II -
6 0.35 GN/VT 2852 I - Body Control Module LIN Bus 6 6 0.35 BU 2852 II -
7 0.35 BK/YE 407 I - Sensor Low Reference 7 0.35 BK/YE 407 II -
8 0.35 VT/WH 239 I - Run/Crank Ignition 1 Voltage 8 0.35 BN/VT 239 II -
9 0.35 WH/YE 4634 I - HVAC Remote Enable Signal 9 0.35 RD 4634 II -
10 - - - - - Not Occupied 10 - - - - -