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Inflatable Restraint Sensing and Diagnostic Module (SDM)

Fig 1: Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector End View
GM1468532Courtesy of GENERAL MOTORS CORP.
Inflatable Restraint Sensing and Diagnostic Module (SDM)

Pin Wire Circuit Function
1 0.5 BK/WH 2151 Ground
2 0.5 PU 1807 Class 2 Serial Data
3 - - Not Available
4 0.5 BN 3020 Steering Wheel Module - Stage 1 - Low Control
5 0.5 TN 3021 Steering Wheel Module - Stage 1 - High Control
6 0.5 YE 3025 I/P Module - Stage 1 - High Control
7 0.5 OG 3024 I/P Module - Stage 1 - Low Control
8 0.5 PK 3022 Steering Wheel Module - Stage 2 - Low Control
9 0.5 WH 3023 Steering Wheel Module - Stage 2 - High Control
10 0.5 GY 3027 I/P Module - Stage 2 - High Control
11 0.5 PU 3026 I/P Module - Stage 2 - Low Control
12 0.5 BN 2106 Roof Rail Module - Left - Low Control (ASF)
13 0.5 D-GN 2105 Roof Rail Module - Left - High Control (ASF)
14 0.5 GY 2103 Roof Rail Module - Right - High Control (ASF)
15 0.5 D-BU 2104 Roof Rail Module - Right - Low Control (ASF)
16 0.5 OG/BK 2119 Seat Belt Pretensioner - Left - Low Control
17 0.5 BK/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 BK/WH 2644 Seat Position Sensor Return
29 0.35 L-GN/WH 2638 Driver Seat Position Sensor - High
30 0.35 L-BU 2645 Passenger Seat Position Sensor - High
31 0.5 YE 1139 Ignition Voltage
32-34 - - Not Available
35 0.5 PK 2306 Serial Data Link
36 0.5 GY 349 Electronic Frontal Sensor Voltage - Left
37 0.5 YE 1834 Electronic Frontal Sensor Voltage - Right
38 0.5 YE 354 Electronic Frontal Sensor Signal - Left
39 0.5 D-GN 1409 Electronic Frontal Sensor Signal - Right
40 0.5 WH 2162 Side Impact Sensor - Left - Signal (ASF)
41 0.5 D-GN 2164 Side Impact Sensor - Right - Signal (ASF)
42 0.5 YE 2161 Side Impact Sensor - Left - Voltage (ASF)
43 0.5 TN 2163 Side Impact Sensor - Right - Voltage (ASF)
44-58 - - Not Available
59 0.5 BK/WH 238 Seat Belt Switch - Left
60 0.35 RD 2484 Seat Belt Switch - Right
Connector Part Information 
  • OEM: 4-638595-4 (ASF)/4-638595-3 (-ASF)
  • Service: 19152717
  • Description: 60-Way F (YE)
Terminal Part Information 
  • Pins: 1-19, 28-31, 35-43, 59, 60
  • Terminal: Service with Terminated Lead
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: 15315247/J-35616-64A (L-BU)