2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE

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 1751 Ground
2 0.35 D-GN 5060 Low Speed GMLAN Serial Data
3 0.35 D-GN 5060 Low Speed GMLAN Serial Data
4 0.5 PK 3022 Steering Wheel Module - Stage 2 - Low Control (LD)
5 0.5 WH 3023 Steering Wheel Module - Stage 2 - High Control (LD)
6 0.5 GY 3027 Instrument Panel Module - Stage 2 - High Control (LD+AK5)
7 0.5 PU 3026 Instrument Panel Module - Stage 2 - Low Control (LD+AK5)
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 Instrument Panel Module - Stage 1 - High Control
11 0.5 OG 3024 Instrument Panel Module - Stage 1 - Low Control
12 0.5 PK 5020 Roof Rail Module - Left - Low Control (ASF)
13 0.5 PU/WH 5019 Roof Rail Module - Left - High Control (ASF)
14 0.5 YE/BK 5021 Roof Rail Module - Right - High Control (ASF)
15 0.5 WH/BK 5022 Roof Rail Module - Right - Low Control (ASF)
16-21 - - Not Used
22 0.5 L-BU 7015 Roof Rail Module - Right Rear High Control (ASF+06)
23 0.5 TN/BK 7016 Roof Rail Module - Right Rear Low Control (ASF+06)
24 0.5 OG/BK 2119 Seat Belt Pretensioner - Left - Low Control (LD)
25 0.5 TN/WH 2118 Seat Belt Pretensioner - Left - High Control (LD)
26 0.5 L-GN 2116 Seat Belt Pretensioner - Right - High Control (LD)
27 0.5 OG 2117 Seat Belt Pretensioner - Right - Low Control (LD)
28 0.5 PK 5057 Low Reference
29 0.5 L-GN 5055 Seat Position Sensor - Left - Signal (LD)
30 0.5 L-BU 5056 Seat Position Sensor - Right - Signal (LD)
31 0.5 RD/WH 3440 Battery Positive Voltage
32 0.35 PK 1139 Ignition Voltage
33 0.5 PK 353 Instrument Panel Module Suppression Indicator Control
34 0.5 TN/PK 371 Instrument Panel Module Disable Switch - Signal
35 - - Not Used
36 0.5 D-BU/WH 6619 Low Reference
37 - - Not Used
38 0.5 BN/WH 6618 Discriminating Sensor - Signal
39 - - Not Used
40 0.5 PU/WH 6628 Low Reference (ASF)
41 0.5 WH/BK 6629 Low Reference (ASF)
42 0.5 WH 2132 Left Front Side Impact Sensing Module Signal (ASF)
43 0.5 D-GN 2134 Right Front Side Impact Sensing Module Signal (ASF)
44 0.5 L-BU 6622 Left Rear Side Impact Sensing Module Signal (ASF+06)
45 0.5 L-BU/WH 6626 Right Rear Side Impact Sensing Module Signal (ASF+06+E24/YA2)
46 0.5 L-GN/BK 6623 Low Reference(ASF+06)
47 0.5 PK/BK 6627 Low Reference (ASF+06+E24/YA2)
48-57 - - Not Used
58 0.5 YE/BK 5229 Rollover High Signal (ASF)
59 0.5 TN/WH 238 Seat Belt Switch - Left
60 0.5 OG 1362 Seat Belt Switch - Right - Signal (LD)
Connector Part Information 
  • OEM: 13549639
  • Service: See Catalog
  • Description: 60-Way F 0.64 GET Series, Sealed (YE)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Factory Service Tools

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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