Fuel Pump Relay- Secondary (except NQZ)

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Fuel Pump Relay- Secondary (except NQZ)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
GM535912Courtesy of
Connector Part Information
  • Harness Type: Chassis
  • OEM Connector: 12129716
  • Service Connector: 13580863
  • Description: 4-Way F Metri-Pack 280 Series, Sealed, Flexlock (GY)
Terminal Part Information
  • Terminated Lead: Service by Harness - See Part Catalog
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: Pins 30, 86, 87- 12110847/4
  • Terminal/Tray: Pins 85- 12110845/4
  • Core/Insulation Crimp: Pins 30, 87- C/5
  • Core/Insulation Crimp: Pins 85- A/5
  • Core/Insulation Crimp: Pins 86- E/5
Fuel Pump Relay- Secondary (except NQZ)

Pin Wire Circuit Function
30 PK 439 Ignition Voltage
85 BK 2150 Ground
86 TN 1465 Fuel Pump Relay Control- Secondary
87 L-GN 1058 Fuel Balance Pump Control
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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