Inflatable Restraint Sensing and Diagnostic Module (SDM) (without ASF)

2009 Chevrolet Tahoe Base, 4.8 CSECTION Inflatable Restraint Sensing and Diagnostic Module (SDM) (without ASF)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Inflatable Restraint Sensing and Diagnostic Module (SDM) (without ASF) Connector End View
GM1468532Courtesy of GENERAL MOTORS CORP.
Inflatable Restraint Sensing and Diagnostic Module (SDM) (without ASF)

Pin Wire Color Circuit Function
1 0.5 BK/WH 2751 Low Reference
2 0.35 D-GN 5060 Low Speed GMLAN Serial Data
3 - - Not Available
4 0.5 PK 3022 Steering Wheel Module - Stage 2 - Low Control
5 0.5 WH 3023 Steering Wheel Module - Stage 2 - High Control
6 0.5 GY 3027 I/P -- High Control
7 0.5 PU 3026 I/P Module - Stage 2 - Low Control
8 0.5 BN 3020 Steering Wheel Module - Stage 1 - Low Control
9 0.5 TN 3021 Steering Wheel Module - Stage 1 - High Control
10 0.5 YE 3025 I/P Module - Stage 1 - High Control
11 0.5 OG 3024 I/P Module - Stage 1 - Low Control
12-15 - - Not Available
16 0.5 OG/BK 2119 Seat Belt Pretensioner - Left - Low Control
17 0.5 TN/WH 2118 Seat Belt Pretensioner - Left - High Control
18 0.5 L-GN 2116 Seat Belt Pretensioner - Right - High Control
19 0.5 OG 2117 Seat Belt Pretensioner - Right - Low Control
20-27 - - Not Available
28 0.35 PK 5057 Low Reference
29 0.35 L-GN 5055 Seat Position Sensor - Left - Signal
30 0.35 L-BU 5056 Seat Position Sensor - Right - Signal
31 0.5 RD/WH 4440 Battery Positive Voltage
32 0.35 PK 1139 Ignition Voltage
33-35 - - Not Available
36 0.5 YE 354 Discriminating Sensor - Signal
37 0.5 D-GN 1409 Discriminating Sensor - Right - Signal
38 0.5 TN/OG 5045 Low Reference
39 0.5 GY 5600 Low Reference
40-58 - - Not Available
59 0.35 TN/WH 238 Seat Belt Switch - Left
60 0.35 OG 1362 Seat Belt Switch - Right Signal
Connector Part Information 
  • OEM: 13514533
  • Service: 19115672
  • Description: 25-Way F Receptacle 0.64 Series, Sealed (GY)
Terminal Part Information 
  • Terminal/Tray: Service with Terminated Lead
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)
RENDER: 1.0x

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