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 MANUALSCHEVROLET2018SILVERADO 2500 HD WT, 2D PICKUP, 6.0L ENG VIN G, RWD, GASREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2134 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ELECTRONIC STEERING CONTROL MODULE X2 THROUGH MEMORY SEAT MODULE)COMPONENT CONNECTOR END VIEWSMEMORY SEAT MODULE (MSM) X1 (AN3)
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, Gas
Memory Seat Module (MSM) X1 (AN3)
2018 Chevrolet Silverado 2500 HD WT, 2D Pickup, 6.0L Eng VIN G, RWD, GasSECTION Memory Seat Module (MSM) X1 (AN3)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Memory Seat Module (MSM) X1 (AN3)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 1 PU | 2424 | Ground (without KB6) |
| 2-3 | - | - | Not Used |
| 4 | 1 L-BU | 2433 | Ground (without KB6) |
| 1 OG | 6194 | Ground (KB6) | |
| 5 | - | - | Not Used |
| 6 | 1 D-BU | 2479 | Heated Seat Cushion Element Control (without KB6) |
| 1 BN | 6193 | Heated Seat Cushion Element Control (KB6) | |
| 7-8 | - | - | Not Used |
| 9 | 1 TN | 285 | Driver Seat Horizontal Motor Forward Control |
| 10 | 1 L-GN | 284 | Driver Seat Horizontal Motor Rearward Control |
| 11 | 1 L-GN | 2078 | Ground (without KB6) |
| 12 | 1 D-GN | 286 | Driver Seat Front Vertical Motor Up Control |
| 13 | 1 D-BU | 287 | Driver Seat Front Vertical Motor Down Control |
| 14 | 1 PK | 2077 | Heated Seat Cushion Element Control (without KB6) |
| 15 | 1 YE | 282 | Driver Seat Rear Vertical Motor Up Control |
| 16 | 1 L-BU | 283 | Driver Seat Rear Vertical Motor Down Control |
Connector Part Information
|
Terminal Part Information
|
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.