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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1417 (Supplemental Inflatable Restraint System) >> Repair Instructions >> Inflator Module Handling and Scrapping >> Deployment Inside Vehicle - Vehicle Scrapping Procedure

Deployment Inside Vehicle - Vehicle Scrapping Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Deploy the inflator modules inside of the vehicle when destroying the vehicle or when salvaging the vehicle for parts. This includes but is not limited to the following situations:
    • The vehicle has completed a useful life.
    • Irreparable damage occurs to the vehicle in a non-deployment type accident.
    • Irreparable damage occurs to the vehicle during a theft.
    • The vehicle is being salvaged for parts to be used on a vehicle with a different VIN as opposed to rebuilding as the same VIN.
    2. CAUTION: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in Cautions and Notices.
    CAUTION: Refer to SIR Inflator Module Handling and Storage Caution in Cautions and Notices.
  2. Before you begin to remove the inflator module, turn OFF the ignition.
  3. Remove the ignition key.
  4. Put on safety glasses.
  5. Remove all loose objects from the front seats.
  6. Disconnect the inflatable restraint steering wheel module coil connector, located behind the glove compartment.
    Fig 1: Disconnecting/Connecting Steering Wheel Module Coil Connector
    GM399187Courtesy of GENERAL MOTORS CORP.
    7. Fig 2: Stripping SIR Wires
    GM566915Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If the vehicle is equipped with dual stage air bags, the steering wheel module and the IP module will each have 4 wires. Refer to SIR Connector End Views  for determining the high and low circuits.
  7. Cut the yellow harness connector from the vehicle, leaving at least 16 cm (6 in) of wire at the connector.
  8. Strip 13 mm (0.5 in) of insulation from all 4 SIR wires connector leads.
    9. Fig 3: Deployment Wires
    GM39390Courtesy of GENERAL MOTORS CORP.
  9. Cut two 4.6 m (15 ft) deployment wires from a 0.8 mm (18 gage) or thicker multi-strand wire. These wires will be used for the steering wheel module deployment harness.
  10. Strip 13 mm (0.5 in) of insulation from both ends of the wires cut in the previous step.
  11. Twist together one end from each of the wires in order to short the wires. Deployment wires shall remain shorted, and not connected to a power source until you are ready to deploy the inflator module.
    12. Fig 4: Twisting Connector Wire Leads (High Circuits) To Deployment Harness Wire
    GM566918Courtesy of GENERAL MOTORS CORP.
  12. Twist together 2 connector wire leads-the high circuits from both stages of the steering wheel module-to one of the deployment harness wires. Refer to SIR Connector End Views  in order to determine the correct circuits.
  13. Inspect that the 3 wire connection is secure.
    14. Fig 5: Bending Twisted Connection Flat
    GM566922Courtesy of GENERAL MOTORS CORP.
  14. Bend flat the twisted connection.
    15. Fig 6: Insulating Connection With Electrical Tape
    GM566927Courtesy of GENERAL MOTORS CORP.
  15. Secure and insulate the 3 wire connection to the deployment harness using electrical tape.
    16. Fig 7: Twisting Connector Wire Leads (Low Circuits) To Deployment Harness Wire
    GM566932Courtesy of GENERAL MOTORS CORP.
  16. Twist together 2 connector wire leads-the low circuits from both stages of the steering wheel module-to the deployment harness wire. Refer to SIR Connector End Views  in order to determine the correct circuits.
  17. Inspect that the 3 wire connection is secure.
    18. Fig 8: Bending Twisted Connection Flat
    GM566936Courtesy of GENERAL MOTORS CORP.
  18. Bend flat the twisted connection.
    19. Fig 9: Insulating Connection With Electrical Tape
    GM566942Courtesy of GENERAL MOTORS CORP.
  19. Secure and insulate the 3 wire connection to the deployment harness using electrical tape.
    20. Fig 10: Connecting Deployment Harness
    GM398308Courtesy of GENERAL MOTORS CORP.
  20. Connect the deployment harness to the steering wheel module connector.
    21. Fig 11: Routing Deployment Harness
    GM885119Courtesy of GENERAL MOTORS CORP.
  21. Route the deployment harness out of the driver side of the vehicle.
    22. Fig 12: View Of Deployment Harness At Side Impact Module
    GM628320Courtesy of GENERAL MOTORS CORP.
  22. Disconnect the inflatable restraint side impact module-left connector (1), located under the driver seat.
    23. Fig 13: Identifying Proper Stripping Of Connection Wire Leads
    GM68649Courtesy of GENERAL MOTORS CORP.
  23. Cut the side impact module-left connector out of the vehicle, leaving at least 16 cm (6 in) of wire at the connector.
  24. Strip 13 mm (0.5 in) of insulation from each of the connector wire leads.
    25. Fig 14: Deployment Wires
    GM39390Courtesy of GENERAL MOTORS CORP.
  25. Cut two 4.6 m (15 ft) deployment wires from a 0.8 mm (18 gage) or thicker multi-strand wire. These wires will be used for the side impact module-left deployment harness.
  26. Strip 13 mm (0.5 in) of insulation from both ends of these wires.
  27. Twist together one end from each of the wires in order to short the wires. Deployment wires shall remain shorted, and not connected to a power source until you are ready to deploy the inflator module.
    28. Fig 15: View Of Proper Twisting Of Connector Wire Lead To Deployment Wire
    GM68652Courtesy of GENERAL MOTORS CORP.
  28. Twist together one connector wire lead to one deployment wire.
  29. Inspect that the previous connection is secure.
    30. Fig 16: Bending Twisted Connection Flat & Insulating With Tape
    GM68660Courtesy of GENERAL MOTORS CORP.
  30. Bend flat the twisted connection.
  31. Secure and insulate the connection using electrical tape.
    32. Fig 17: Taping Remaining Connector Wire Lead To Remaining Deployment Wire
    GM68662Courtesy of GENERAL MOTORS CORP.
  32. Twist together, bend, and tape the remaining connector wire lead to the remaining deployment wire.
    33. Fig 18: View Of Deployment Harness At Side Impact Module
    GM628320Courtesy of GENERAL MOTORS CORP.
  33. Connect the deployment harness to the side impact module-left connector (1).
    34. Fig 19: Routing Deployment Harness
    GM885119Courtesy of GENERAL MOTORS CORP.
  34. Route the deployment harness out of the driver side of the vehicle.
    35. Fig 20: Disconnecting/Connecting IP Module Connector
    GM398308Courtesy of GENERAL MOTORS CORP.
  35. Disconnect the inflatable restraint IP module connector, located at the RH side of the instrument panel.
    36. Fig 21: Stripping SIR Wires
    GM566915Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If the vehicle is equipped with dual stage air bags, the steering wheel module and the IP module will each have 4 wires. Refer to SIR Connector End Views  for determining the high and low circuits.
  36. Cut the 4 SIR wires leading to the connector from the vehicle, leaving at least 16 cm (6 in) of wire at the connector.
  37. Strip 13 mm (0.5 in) of insulation from all 4 SIR wires connector leads.
    38. Fig 22: Deployment Wires
    GM39390Courtesy of GENERAL MOTORS CORP.
  38. Cut two 4.6 m (15 ft) deployment wires from a 0.8 mm (18 gage) or thicker multi-strand wire. These wires will be used for the IP module deployment harness.
  39. Strip 13 mm (0.5 in) of insulation from both ends of the wires cut in the previous step.
  40. Twist together one end from each of the wires in order to short the wires. Deployment wires shall remain shorted, and not connected to a power source until you are ready to deploy the inflator module.
    41. Fig 23: Twisting Connector Wire Leads (High Circuits) To Deployment Harness Wire
    GM566918Courtesy of GENERAL MOTORS CORP.
  41. Twist together 2 connector wire leads-the high circuits from both stages of the IP module-to one of the deployment harness wires. Refer to SIR Connector End Views  in order to determine the correct circuits.
  42. Inspect that the 3 wire connection is secure.
    43. Fig 24: Bending Twisted Connection Flat
    GM566922Courtesy of GENERAL MOTORS CORP.
  43. Bend flat the twisted connection.
    44. Fig 25: Insulating Connection With Electrical Tape
    GM566927Courtesy of GENERAL MOTORS CORP.
  44. Secure and insulate the 3 wire connection to the deployment harness using electrical tape.
    45. Fig 26: Twisting Connector Wire Leads (Low Circuits) To Deployment Harness Wire
    GM566932Courtesy of GENERAL MOTORS CORP.
  45. Twist together 2 connector wire leads-the low circuits from both stages of the IP module-to the deployment harness wire. Refer to SIR Connector End Views  in order to determine the correct circuits.
  46. Inspect that the 3 wire connection is secure.
    47. Fig 27: Bending Twisted Connection Flat
    GM566936Courtesy of GENERAL MOTORS CORP.
  47. Bend flat the twisted connection.
    48. Fig 28: Insulating Connection With Electrical Tape
    GM566942Courtesy of GENERAL MOTORS CORP.
  48. Secure and insulate the 3 wire connection to the deployment harness using electrical tape.
    49. Fig 29: Disconnecting/Connecting IP Module Connector
    GM398308Courtesy of GENERAL MOTORS CORP.
  49. Connect the deployment harness to the IP module connector.
    50. Fig 30: Routing Deployment Harness
    GM885102Courtesy of GENERAL MOTORS CORP.
  50. Route the deployment harness out of the passenger side of the vehicle.
  51. Completely cover the windshield and the front door openings with a drop cloth.
  52. Stretch out all of the deployment harness wires on the left and right side of the vehicle to their full length.
  53. Deploy each deployment loop one at a time.
  54. Place a power source, 12 V minimum or a 2 A minimum, i.e., a vehicle battery, near the shorted end of the harnesses.
  55. Separate one set of wires and touch the wire ends to the power source in order to deploy the inflator modules, doing only one inflator module at a time.
  56. Disconnect the deployment harness from the power source and twist the wire ends together.
  57. Continue the same process with the remaining deployment harnesses that are available.
  58. Remove the drop cloth from the vehicle.
  59. Disconnect all harnesses from the vehicle.
  60. Discard the harnesses.
  61. Scrap the vehicle in the same manner as a non-SIR equipped vehicle.
  62. If one or more of the inflator modules did not deploy, perform the following steps to remove the undeployed modules from the vehicle:
  63. Call the Technical Assistance Group for further assistance.
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