Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1591 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS (2 OF 2))ELECTRICAL CENTER IDENTIFICATION VIEWSFUSE BLOCK - MOBILE RADIO (9L4)NOTES
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Fuse Block - Mobile Radio (9L4): Notes
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Notes
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
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
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Terminal Part Information
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RENDER: 1.0x
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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.