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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C1500, 5.3 ZREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2169 (WIRING SYSTEMS AND POWER MANAGEMENT - ELECTRICAL CENTER IDENTIFICATION VIEWS & COMPONENT CONNECTOR END VIEW INDEX)ELECTRICAL CENTER IDENTIFICATION VIEWSJUNCTION BLOCK - LEFT I/P X3
2006 Chevrolet Suburban C1500, 5.3 Z

Junction Block - Left I/P X3

2006 Chevrolet Suburban C1500, 5.3 ZSECTION Junction Block - Left I/P X3
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. 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 View
GM1665716Courtesy of GENERAL MOTORS CORP.
Junction Block - Left I/P X3

Pin Wire Circuit Function
1 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus +
2 0.8 BK 1050 Ground (HP2)
3 0.5 TN 2501 High Speed GMLAN Serial Data Bus -
4 0.35 YE 6817 LED Backlight Dimming Control (with UK6, except Y91)
5 0.5 TN 2501 High Speed GMLAN Serial Data Bus -
6 0.8 BK 1050 Ground (D07)
7 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus +
8 0.5 RD/WH 3740 Battery Positive Voltage (with UQA, except Y91)
Connector Part Information 
  • OEM: 13516840
  • Service: 19149295
  • Description: 8-Way F GT 280 Series (GN)

Terminal Part Information 
  • Pins: 1-7
  • Terminal/Tray: 13525970/4
  • Core/Insulation Crimp: Pins 1, 3, 5, 7 - E/A
  • Core/Insulation Crimp: Pins 2 - 2/A
  • Release Tool/Test Probe: 15315147/J-35616-4A (PU)
  • Pin: 8
  • Terminal/Tray: 15304713/19
  • Core/Insulation Crimp: 4/4
  • Release Tool/Test Probe: 15315147/J-35616-4A (PU)
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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