Fuse Block - Mobile Radio (9L4): Notes

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Notes
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Fig 1: Fuse Block - Mobile Radio (9L4) Connector End View
GM73243Courtesy of GENERAL MOTORS CORP.
Fuse Block - Mobile Radio (9L4)

Pin Wire Circuit Function
A1-A7 - - Not Used
A8 3 BK 50 Ground
A9 3 BK 450 Ground
B1 3 L-BU 6122 Mobile Radio Relay Control
B2 - - Not Used
B3 1 BK 450 Ground
1 BK 450 Ground
B4 - - Not Used
B5 3 L-GN 6123 Relay B Output
B6 - - Not Used
B7 1 BK 450 Ground
B8 3 RD/WH 5440 Battery Positive Voltage
B9 5 RD/BK 102 Battery Positive Voltage
C1 0.5 YE 43 Ignition Voltage Signal
C2 - - Not Used
C3 3 RD/WH 5440 Battery Positive Voltage
C4 - - Not Used
C5 3 L-BU 6122 Mobile Radio Relay Control
C6 - - Not Used
C7 3 RD/WH 5440 Battery Positive Voltage
C8 3 BK 50 Ground
C9 3 BK 450 Ground
D1-D7 - - Not Used
D8 3 RD/WH 5440 Battery Positive Voltage
D9 5 RD/BK 102 Battery Positive Voltage
Fuse Holder, Device Usage (Gas)

Device Rating Description
Mega Fuse 175A Fuse Block - Underhood, Generator
Mega Fuse 125A Auxiliary Battery Relay (TP2)
Mega Fuse 60A Fuse Block - Mobile Radio (9L4)
Fuse Holder, Device Usage (Diesel)

Device Rating Description
Mega Fuse 175A Fuse Block - Underhood, Generator
Mega Fuse 175A Auxiliary Battery Relay (TP2), Generator - Auxiliary (K76/YF2), Intake Air Heater
Mega Fuse 125A Glow Plug Control Module
Connector Part Information 
  • OEM: 12160504
  • Service: See Catalog
  • Description: 36-Way F Metri-Pack 280 Series, Flexlock (BK)
Terminal Part Information 
  • Pins: A8, A9, B1, B5, B8, C1, C3, C5, C7-C9, D8
  • Terminal/Tray: 12110652/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: B3
  • Terminal/Tray: 12110657/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: B7
  • Terminal/Tray: 12110652/4
  • Core/Insulation Crimp: F/D
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: B9, D9
  • Terminal/Tray: 12110657/4
  • Core/Insulation Crimp: B/G
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
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.