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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.
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HOMESERVICE MANUALSCHEVROLET2012CHEVY EXPRESS G2500, VAN PASSENGER, 4.8L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2464 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEW 3 OF 5)INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE (SDM) (ASF, EXCEPT HP2)
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN A
Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF, except HP2)
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN ASECTION Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF, except HP2)
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Fig 1: Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF, except HP2) Connector End View
Inflatable Restraint Sensing and Diagnostic Module (SDM) (ASF, except HP2))
| 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 Module - Stage 2 - 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 | 0.5 PK | 5020 | Roof Rail Module - Left - Low Control |
| 13 | 0.5 PU/WH | 5019 | Roof Rail Module - Left - High Control |
| 14 | 0.5 YE/BK | 5021 | Roof Rail Module - Right - High Control |
| 15 | 0.5 WH/BK | 5022 | Roof Rail Module - Right - Low Control |
| 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 | 0.5 TN | 7014 | Left Rear Head Curtain Module Low Control (E52) |
| 21 | 0.5 YE | 7013 | Left Rear Head Curtain Module High Control (E52) |
| 22 | 0.5 L-BU | 7015 | Right Rear Head Curtain Module High Control (E52) |
| 23 | 0.5 TN/BK | 7016 | Right Rear Head Curtain Module Low Control (E52) |
| 24-27 | - | - | 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 | 0.5 PU/WH | 6628 | Low Reference |
| 41 | 0.5 WH/BK | 6629 | Low Reference |
| 42 | 0.5 WH | 2132 | Side Impact Sensing Module - Left - Signal |
| 43 | 0.5 D-GN | 2134 | Side Impact Sensing Module - Right - Signal |
| 44 | 0.5 L-BU | 6622 | Left Rear Side Impact Sensing Module Signal |
| 45 | 0.5 L-BU/WH | 6626 | Right Rear Side Impact Sensing Module Signal |
| 46 | 0.5 L-GN/BK | 6623 | Low Reference |
| 47 | 0.5 PK/BK | 6627 | Low Reference |
| 48-57 | - | - | Not Available |
| 58 | 0.5 YE/BK | 5229 | Roll Over Sensor High Signal |
| 59 | 0.35 TN/WH | 238 | Seat Belt Switch - Left |
| 60 | 0.35 OG | 1362 | Seat Belt Switch - Right - Signal |
Connector Part Information
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Terminal Part Information
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RENDER: 1.0x
NO RELATED
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When to See a Mechanic
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.