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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSBUICK2010LUCERNE CXL, 3.9 1REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 314 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - 1-2 SHIFT SOLENOID THROUGH ENGINE CONTROL MODULE X1)COMPONENT CONNECTOR END VIEWSBODY CONTROL MODULE (BCM) X2
2010 Buick Lucerne CXL, 3.9 1
Body Control Module (BCM) X2
2010 Buick Lucerne CXL, 3.9 1SECTION Body Control Module (BCM) X2
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Body Control Module (BCM) X2
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 0.8 OG | 1732 | 12-Volt Reference |
| 2 | 0.8 PK/D-BU | 3140 | Battery Positive Voltage |
| 3 | 0.8 GY | 8 | Instrument Panel Lamp Supply Voltage |
| 4 | - | - | Not Used |
| 5 | 0.8 GY/BK | 690 | Courtesy Lamp Control (C97) |
| 6-7 | - | - | Not Used |
| 8 | 0.35 L-BU | 13 | Park Lamp Switch ON Signal |
| 9 | - | - | Not Used |
| 10 | 0.35 L-BU | 383 | Trunk Release Control |
| 11 | 0.35 L-GN/BK | 1137 | Ambient Light Sensor Signal |
| 12 | 0.35 WH | 103 | Headlamp Switch Off Signal |
| 13-16 | - | - | Not Used |
| 17 | 0.35 D-GN | 306 | Park Lamp Switch ON Signal |
| 18 | 0.35 PK/BK | 1597 | Courtesy Lamp Switch On Signal |
| 19-20 | - | - | Not Used |
| 21 | 0.35 BN/WH | 1571 | Traction Control Switch Signal |
| 22 | 0.35 PU | 6027 | Brake Transmission Shift Interlock Solenoid Control |
| 23-25 | - | - | 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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.