GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2002 🢒 Firebird 🢒 Restraints 🢒 SIR 🢒 Inflatable Restraint Sensing and Diagnostic Module Replacement

CAUTION: Be careful when you handle a sensing and diagnostic module (SDM). Do not strike or jolt the SDM. Before applying power to the SDM:

   • Remove any dirt, grease, etc. from the mounting surface
   • Position the SDM horizontally on the mounting surface
   • Point the arrow on the SDM toward the front of the vehicle
   • Tighten all of the SDM fasteners and SDM bracket fasteners to the specified torque value
Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary SIR system repairs.

Removal Procedure

    Object Number: 383423 Size: SH
  1. Disable the SIR system. Refer to Disabling the SIR System .
  2. Remove the front floor console. Refer to Front Floor Console Replacement in Instrument Panel, Gages and Console.
  3. Remove the connector position assurance (CPA) from the inflatable restraint sensing and diagnostic module (SDM) harness connector.

    4. Object Number: 383428 Size: SH
  4. Disconnect the SDM harness connector from the SDM.

    5. Object Number: 383433 Size: SH
  5. Remove the SDM mounting fasteners (2).
  6. Remove the SDM (1) from the bracket (3).

Installation Procedure

    Object Number: 383433 Size: SH
  1. Install the SDM (1) to the bracket (3).

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

  2. Install the SDM mounting fasteners (2).

    3. Tighten
    Tighten fasteners to 8 N·m (71 lb in).


    Object Number: 383428 Size: SH
  3. Install the SDM harness connector to the SDM.

    4. Object Number: 383423 Size: SH
  4. Install the CPA to the SDM harness connector.
  5. Install the front floor console. Refer to Front Floor Console Replacement in Instrument Panel, Gages and Console.
  6. If the new SDM has a different part number than the original SDM, follow the instructions on the IPC Special Functions menu on the scan tool in order to synchronize the new SDM with the IPC.

    7. Important: The AIR BAG indicator may remain ON after the SDM has been replaced. DTC B1001 may set requiring the SDM part number to be set in multiple modules. If the indicator remains ON after enabling the SIR system, perform the diagnostic system check and follow the steps thoroughly to ensure that the SDM is set properly.

  7. Enable the SIR system. Refer to Enabling the SIR System .