GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2003 🢒 H2 🢒 Restraints 🢒 SIR 🢒 Inflatable Restraint Front End Sensor Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

  1. Disable the SIR system. Refer to sir disabling and enabling zones. Refer to SIR Disabling and Enabling .
  2. Remove the engine protection shield, if equipped. Refer to Engine Protection Shield Replacement in Frame and Underbody.

    3. Object Number: 189976 Size: SH
  3. Remove the connector position assurance (CPA) from the inflatable restraint front end discriminator sensor harness connector.

    4. Object Number: 189982 Size: SH
  4. Disconnect the inflatable restraint front end discriminating sensor harness connector from the sensor.

    5. Object Number: 832839 Size: SH
  5. Remove the mounting fasteners.
  6. Remove the inflatable restraint front end discriminating sensor from the vehicle.

    7. Important: The following procedure should be utilized in the event that the sensor mounting holes or fasteners are damaged to the extent that the sensor may no longer be properly mounted.

  7. Perform the following steps in order to complete the fastener repair:
    8. 7.1. Remove and discard the improperly installed fastener.
    7.2. Chisel off the damaged weld nut.
    7.3. Condition the front end lower tie surface where the new weld nut is to be installed.
    7.4. Install the new weld nut GM P/N 11514034 or equivalent into position.
    7.5. Migweld the new weld nut to the front end lower tie surface in the correct
    7.6. Use the new fastener GM P/N 11514034 or equivalent.

Installation Procedure

    Object Number: 832839 Size: SH
  1. Install the inflatable restraint front end discriminating sensor to the front end lower tie surface.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the inflatable restraint front end discriminating sensor mounting fasteners.

    3. Tighten
    Tighten the screws to 10 N·m (89 lb in).


    Object Number: 189982 Size: SH
  3. Connect the inflatable restraint front end discriminating harness connector to the sensor.
  4. Install the connector position assurance (CPA) to the inflatable restraint front end discriminating sensor harness connector.
  5. Install the engine protection shield, if equipped. Refer to Engine Protection Shield Replacement in Frame and Underbody.
  6. Enable the SIR system. Refer to SIR Disabling and Enabling .