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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> Component Connector End Views (S78-X92D) >> Component Connector End Views >> X88 Trailer Connector X1 (U4G)

X88 Trailer Connector X1 (U4G)

GM2487931Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Trailer Tow
  • OEM Connector: 90450869
  • Service Connector: Service by Harness -
  • Description: 13 -Way F 3.5 Series, Sealed
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I Not required J-35616-4A (PU) No Tool Required
Pin Size Color Circuit Function Terminal Type ID Option
1 0.75 BU / WH 5186 Left Trailer Turn Signal Lamp Control I U4G
2 0.75 YE / WH 5190 Trailer Fog Lamp Control I U4G
3 2.5 BK 1250 Ground I U4G
4 0.75 YE / GY 5187 Right Trailer Turn Signal Lamp Control I U4G
5 0.75 GY 5185 Right Trailer Park Lamp Control I U4G
6 0.75 BN / YE 5188 Trailer Stop Lamp Control I U4G
7 0.75 BN / GY 5184 Left Trailer Park Lamp Control I U4G
8 0.75 GN / WH 5189 Trailer Backup Lamp Control I U4G
9 2.5 RD / VT 4640 Battery Positive Voltage I U4G
10 2.5 VT / BN 1141 Run Ignition 3 Voltage I U4G
11 2.5 BK 1250 Ground I U4G
12 0.75 GN / BU 5992 Trailer Connected Signal I U4G
13 2.5 BK 1250 Ground I U4G