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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2433 (COMPONENT LOCATIONS - ELECTRICAL CENTER IDENTIFICATION VIEWS)ELECTRICAL CENTER IDENTIFICATION VIEWSJUNCTION BLOCK - LEFT I/P X12
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Junction Block - Left I/P X12

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Junction Block - Left I/P X12
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Junction Block - Left I/P X12 Connector End View
GM1665727Courtesy of GENERAL MOTORS CORP.
Junction Block - Left I/P X12

Pin Wire Circuit Function
1 3 RD/WH 5040 Battery Positive Voltage
2 3 RD/WH 3440 Battery Positive Voltage (N48)
3 0.5 L-BU 1320 CHMSL Supply Voltage
4 0.5 YE/BK 5813 Park Enable Supply Voltage (ARS)
0.5 YE/BK 5813 Park Enable Supply Voltage (ARS)
5 0.5 GY 157 Interior Lamp Control (with LWB or without E52)
6 - - Not Used
7 0.35 PK 239 Ignition Voltage (KB6)
0.35 PK 239 Ignition Voltage (UVC)
8 3 BK 2550 Ground
Connector Part Information
  • Harness Type: Body
  • OEM Connector: 13516834
  • Service Connector: 19149292
  • Description: 8-Way F GT 280 Series (BN)

Terminal Part Information
  • Pins: 1, 2, 8
  • Terminated Lead: Service by Connector Assembly - 19149292
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 13525969/4
  • Core/Insulation Crimp: F/D
  • Pins: 3-5, 7
  • Terminated Lead: Service by Connector Assembly - 19149292
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 13525970/4
  • Core/Insulation Crimp: Pins 3, 5 - E/A
  • Core/Insulation Crimp: Pins 4, 7 (AN3 and UVC) - 2/A
  • Core/Insulation Crimp: Pins 7 (QN3 or UVC) - Not Available
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.