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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> Component Connector End Views (T12 (X3) - X92G) >> Component Connector End Views >> X88B Tow Vehicle Electrical Receptacle X1 (U1D-MBR)

X88B Tow Vehicle Electrical Receptacle X1 (U1D-MBR)

GM2056936Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Chassis
  • OEM Connector: 13857223
  • Service Connector: 15306164
  • Description: 7-Way F 280, 630 Metri-Pack Series, Sealed (BK)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I Not required J-35616-42 (RD) No Tool Required
II Not required J-35616-4A (PU) No Tool Required
Pin Size Color Circuit Function Terminal Type ID Option
A 0.75
0.75
GN / WH
WH / GN
5189
1624
Trailer Backup Lamp Control
Trailer Backup Lamp Control
II
II
U1D
Z82-U1D
B 3 BK 1950 Ground I -
C 2.5 BU 47 Trailer Auxiliary Control II -
D 0.75
0.75
YE / GY
GN / VT
5187
1619
Right Trailer Turn Signal Lamp Control
Right Rear Trailer Stop/Turn Lamp Control
II
II
U1D
Z82-U1D
E 4 RD / GN 742 Battery Positive Voltage II -
F 0.75
0.75
BN / GY
GY / BN
5184
2109
Left Trailer Park Lamp Control
Trailer Park Lamp Control
II
II
U1D
Z82-U1D
G 0.75
0.75
BU / WH
YE / GY
5186
1618
Left Trailer Turn Signal Lamp Control
Left Rear Trailer Stop/Turn Lamp Control
II
II
-MAS-MBM-MBR+U1D+Z82
Z82-U1D