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 320 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ENGINE CONTROL MODULE X2 THROUGH PRESSURE CONTROL SOLENOID)COMPONENT CONNECTOR END VIEWSMEMORY SEAT MODULE (MSM) X4 (A45/AM3/KB6)
2010 Buick Lucerne CXL, 3.9 1
Memory Seat Module (MSM) X4 (A45/AM3/KB6)
2010 Buick Lucerne CXL, 3.9 1SECTION Memory Seat Module (MSM) X4 (A45/AM3/KB6)
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.
Memory Seat Module (MSM) X4 (A45/AM3/KB6)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 1 PU | 767 | Driver Seat Lumbar Motor Down Control |
| 2 | 1 TN | 768 | Driver Power Seat Lumbar Motor Up Control |
| 3 | - | - | Not Used |
| 4 | 1 TN/BK | 7056 | Passenger Seat Lumbar Motor Down Control |
| 5 | 1 L-BU/BK | 7057 | Passenger Seat Lumbar Motor Up Control |
| 6 | - | - | Not Used |
| 7 | 1 BN | 2112 | Steering Column Tilt Motor Control - Down |
| 8 | 1 PK/BN | 2111 | Steering Column Tilt Motor Control - Up |
| 9-11 | - | - | Not Used |
| 12 | 1 D-BU | 611 | Driver Power Seat Lumbar Motor Forward Control |
| 13 | 1 PK/PU | 610 | Driver Power Seat Lumbar Motor Rearward Control |
| 14 | - | - | Not Used |
| 15 | 1 YE | 1257 | Driver Power Seat Recline Motor Forward Control |
| 16 | 1 L-BU | 277 | Driver Power Seat Recline Motor Rearward Switch Signal |
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.