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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1925 (OEM Connector End Views - Sierra & SILVERADO - Cooling System, Data Communication, Displays & Gauges, Electrical Center, Engine Control Module, Engine Controls) >> Electrical Center Connector End Views >> Junction Block Connector End View - Left I/P X3
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Junction Block Connector End View - Left I/P X3

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Junction Block - Left I/P X3 Connector End Views
GM1665716Courtesy of GENERAL MOTORS CORP.
Junction Block - Left I/P X3 Connector Parts Information

Connector Part Information 
  • OEM: 13516840
  • Service: 19149295
  • Description: 8-Way F GT 280 Series (GN)
Terminal Part Information 
  • Terminal/Tray: 13525970/4
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Junction Block - Left I/P X3 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
2 0.8 BK 1050 Ground (D07 +YE9 +AN3)
3 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
4 - - Not Used
5 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
6 3 RD/WH 3740 Battery Positive Voltage (UQA -Y91)
7 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
8 - - Not Used