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Memory Seat Module (MSM) X3 (A45)

WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Memory Seat Module (MSM) X3 (A45) Connector End View
GM1420730Courtesy of GENERAL MOTORS CORP.
Memory Seat Module (MSM) X3 (A45)

Pin Wire Circuit Function
1 0.35 TN 568 Memory Seat Rear Vertical Motor Position Sensor Signal
2 0.35 BN/WH 557 Memory Seat Front Vertical Motor Position Sensor Signal
3 0.35 YE 1063 Memory Seat Lumbar Horizontal Position Sensor Signal (AL2)
4 0.35 WH/BK 570 Driver Memory Seat Recline Motor Position Sensor Signal
5 - - Not Used
6 0.35 GY 788 Memory Mirror Position Sensor 5-Volt Reference
7 0.8 RD/WH 2840 Battery Positive Voltage
8 0.35 D-GN 5060 Low Speed GMLAN Serial Data
9 0.35 OG 2153 Steering Column Telescope Motor Signal
10 0.35 TN 1062 Memory Seat Lumbar Vertical Position Sensor Signal (AL2)
11 0.35 D-GN 569 Memory Seat Horizontal Motor Position Sensor Signal
12 - - Not Used
13 0.35 OG/WH 2154 Steering Column Tilt Motor Signal
14 0.35 TN 782 Memory Seat/Mirror Sensor Low Reference
15 0.35 BK/WH 551 Ground
16 - - Not Used
Connector Part Information 
  • OEM: 174046-2
  • Service: 88987953
  • Description: 16-Way F 40 Series Multi-Lock (BK)
Terminal Part Information 
  • Pins: 1-4, 6-7, 9-11, 13-15
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pin: 8
  • Terminal/Tray: 173681-2/17
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)
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