Precharge Pump (JL4)

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Precharge Pump (JL4)
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Fig 1: Precharge Pump (JL4) Connector End View
GM603213Courtesy of GENERAL MOTORS CORP.
Precharge Pump (JL4) Connector & Terminal Parts Information

Connector Part Information 
  • OEM: 15326679
  • Service: 15306196
  • Description: 2-Way F GT 280 Series Sealed (BK)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Precharge Pump (JL4) Terminal Identification

Pin Wire Color Circuit No. Function
A D-GN 2878 Precharge Motor Low
B D-BU 2877 Precharge Motor High
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:

  • 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.