Removal Procedure
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
- Disable the SIR system. Refer to Disabling the SIR System .
- Remove the driver seat. Refer to Bucket Seat Replacement in Seats.
- Remove the LF/driver side sill plate.
- Lift up the carpet and insulation in order to access the inflatable restraint sensing and diagnostic module (SDM).
- Remove the Connector Position Assurance (CPA) (4) from the SDM harness connector (3).
- Disconnect the SDM harness connector (3) from the SDM (1).
- Remove the SDM mounting fasteners (6).
- Remove the SDM (1) from the floor sheet metal (2).
- Utilize the following procedures if the SDM mounting fasteners or the SDM attachments are damaged:
Important: The following repair procedures should only be used in the event that the inflatable restraint sensing and diagnostic module (SDM) mounting studs and/or fasteners are damaged to the extent that the SDM can no longer be properly mounted.
| • | If the SDM mounting bracket is broken loose from the floor sheet metal at the weld, migweld the bracket using the puddle weld method the spots that have broken loose. Always weld the bracket in the same spots as the original welds. |
Notice: Refer to Fastener Notice in the Preface section.
| • | If an SDM attachment nut is missing or broken, slip a loose nut (P/N 11515741) under the SDM bracket. While you hold the nut in place, install the bolt (P/N 11515925). |
Tighten
Tighten fasteners to 9 N·m (80 lb in).
| • | If the ground wire nut is missing, Drill the 8 mm (0.315 in) hole in the bracket to 12 mm (0.472 in). Tack weld a loose weld nut (P/N 20530601) to the bracket in place of the missing nut. Fasten the ground wire using the original bolt (P/N 3578880). |
Tighten
Tighten fasteners to 6 N·m (54 lb in).
| • | If the SDM attachment nut or ground nut is stripped, drill a 6.5 mm (0.256 in) hole through the weld nut. Use a new 7 mm bolt (P/N 10267482) in order to fasten the SDM or the ground wire. |
Tighten
Tighten fasteners to 16 N·m (12 lb ft).
| • | If the SDM attachment bolt or ground bolt is broken, use a tap, bolt remover or drill in order to remove the broken bolt. Drill a 6.5 mm (0.256 in) hole through the weld nut. Use a new 7 mm bolt (P/N 10267482) in order to fasten the SDM or the ground wire. |
Tighten
Tighten fasteners to 16 N·m (12 lb ft).
Installation Procedure
- Install the SDM (1) to the floor sheet metal (2).
- Install the SDM mounting fasteners (6).
- Install the SDM harness connector (3) to the SDM (1).
- Install the Connector Position Assurance (CPA) (4) to the SDM harness (3) connector.
- Install the LF/driver side sill plate.
- Install the driver seat. Refer to Bucket Seat Replacement in Seats.
- Enable the SIR system. Refer to Enabling the SIR System .
Notice: Refer to Fastener Notice in the Preface section.
Tighten
Tighten fasteners to 9 N·m (80 lb in).
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.
