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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 641 (COMPONENT CONNECTOR END VIEW (1 OF 5))AUXILIARY BODY CONTROL MODULE (XBCM) X1 (EXP)
2009 Chevrolet Tahoe Base, 4.8 C
Auxiliary Body Control Module (XBCM) X1 (EXP)
2009 Chevrolet Tahoe Base, 4.8 CSECTION Auxiliary Body Control Module (XBCM) X1 (EXP)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Auxiliary Body Control Module (XBCM) X1 (EXP)
| Pin | Wire Color | Circuit | Function |
|---|---|---|---|
| A1 | 0.35 BK | 1050 | Ground |
| A2 | 0.35 RD/WH | 2640 | Battery Positive Voltage |
| A3 | 0.35 D-GN | 5060 | Low Speed GMLAN Serial Data |
| A4-A6 | - | - | Not Used |
| A7 | 0.35 BK/WH | 1851 | Ground |
| A8 | 0.35 L-BU | 187 | Rear Fog Lamp Switch Signal |
| 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 Control |
| B1 | 0.35 L-BU | 1320 | CHMSL Control |
| B2 | 0.35 PK | 239 | Ignition Voltage |
| B3-B10 | - | - | Not Used |
| B11 | 0.35 D-GN | 1619 | Trailer Right Rear Turn/Stop Lamp Control |
| 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.