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) X1
2010 Buick Lucerne CXL, 3.9 1
Body Control Module (BCM) X1
2010 Buick Lucerne CXL, 3.9 1SECTION Body Control Module (BCM) X1
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) X1
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | - | - | Not Used |
| 2 | 0.35 WH | 1390 | Off/Run/Crank Voltage |
| 3 | 0.35 GY/PK | 1884 | Cruise Control Set/Coast/Resume/Accel Switch Signal |
| 4 | 0.35 WH/BK | 1073 | 5-Volt Reference |
| 5 | 0.35 L-GN | 1715 | Windshield Wiper Switch High Signal |
| 6 | 0.35 D-BU | 1796 | Steering Column Radio Control Signal |
| 7 | 0.35 GY | 397 | Cruise Control On Switch Signal |
| 8 | 0.35 BK/WH | 1251 | Ground |
| 9 | 0.35 L-BU | 1714 | Windshield Wiper Switch Low Signal |
| 10-13 | - | - | Not Used |
| 14 | 0.35 PK | 3 | Ignition 1 Voltage |
| 15 | 0.35 L-BU/WH | 1414 | Left Turn Signal Switch Signal |
| 16 | 0.35 D-BU/WH | 1415 | Right Turn Signal Switch Signal |
| 17 | 0.35 PU | 1375 | Remote Radio Control ACC Supply Voltage |
| 18 | 0.35 PU/L-GN | 524 | Headlamp Switch High Beam Signal |
| 19 | 0.35 TN | 2144 | Hazard Switch Signal |
| 20 | - | - | Not Used |
| 21 | 0.35 BN | 4 | Accessory Voltage |
| 22 | - | - | Not Used |
| 23 | 0.5 TN/GY | 1355 | Valet Mode Switch Signal |
| 24 | 0.35 PK | 94 | Windshield Washer Switch Signal |
| 25 | 0.35 YE | 307 | Flash to Pass Switch Signal |
| 26 | 0.35 PU/WH | 816 | A/T Shift Lock Solenoid Supply Voltage (AV8) |
| 27 | - | - | 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.