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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2663 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS PART 1)AUXILIARY BODY CONTROL MODULE (XBCM) X1 (EXP)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Auxiliary Body Control Module (XBCM) X1 (EXP)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Auxiliary Body Control Module (XBCM) X1 (EXP)
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.
Auxiliary Body Control Module (XBCM) X1 (EXP)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| A1 | 0.5 BK | 1050 | Ground |
| A2 | 0.5 RD/WH | 2640 | Battery Positive Voltage |
| A3 | 0.35 D-GN | 5060 | Low Speed GMLAN Serial Data |
| A4-A6 | - | - | Not Used |
| A7 | 0.8 BK/WH | 1851 | Ground |
| A8-A9 | - | - | Not Used |
| A10 | 0.35 PK | 7141 | Trailer Connected Signal Trailer |
| A11 | - | - | Not Used |
| A12 | 0.35 YE | 1618 | Trailer Left Rear Turn/Stop Lamp Supply Voltage |
| B1 | 0.5 L-BU | 1320 | CHMSL Supply Voltage |
| B2 | 0.35 PK | 239 | Ignition 1 Voltage |
| B3-B10 | - | - | Not Used |
| B11 | 0.35 D-GN | 1619 | Trailer Right Rear Turn/Stop Lamp Supply Voltage |
| B12 | - | - | Not Used |
Connector Part Information
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Terminal Part Information
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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.