Air Bag Control Module: Service and Repair

DIAGNOSIS SENSOR UNIT


Removal and Installation


REMOVAL

WARNING:
Before disconnecting diagnosis sensor unit harness connector(s), be sure to disconnect harness connectors from air bag modules and front seat belt pre-tensioner to prevent deployment by static electricity.

CAUTION:
- Before servicing the SRS, turn the ignition switch OFF, disconnect both battery terminals and wait at least three minutes.
- Do not disassemble diagnosis sensor unit.
- Do not use old bolts; replace with new bolts.
- Replace the diagnosis sensor unit if it has been dropped or sustained an impact.
- Check diagnosis sensor unit bracket to make sure it is free of deformities, dents, cracks or rust. If it shows any visible signs of damage, replace with new one.
- The diagnosis sensor unit must always be installed with the arrow mark "<=" pointing toward the front of the vehicle for proper operation.






1. Disconnect the negative and positive battery terminals, then wait at least three minutes.
2. Disconnect the harness connectors for each air bag module and seat belt pre-tensioner. Refer to Driver Air Bag Module SRS-39, Component Side Curtain Air Bag Module, Service and Repair.
3. Remove center console assembly. Refer to Component Parts.
4. Disconnect diagnosis sensor unit connectors.
5. Remove the bolts and the ground bolt, then remove the diagnosis sensor unit.

INSTALLATION
Installation is in the reverse order of removal.
- The diagnosis sensor unit must always be installed with the arrow mark "<=" pointing toward the front of the vehicle.
- Follow the tightening sequence 1,2,3,4 as shown.
- After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to Component Tests and General Diagnostics.

ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the vehicle as equipped. Refer to CONSULT-III Function (Air Bag).