When SRS is activated in a collision

FOR FRONTAL COLLISION: When SRS is activated in a collision

caution

Due to varying models and option levels, not all parts listed in the chart below apply to all vehicles.

WORK PROCEDURE

1. Before performing any of the following steps, ensure that all vehicle body and structural repairs have been completed.

2. Replace the diagnosis sensor unit.

3. Remove the front air bag modules, knee air bag module, crash zone sensor assembly, bracket and seat belt pre-tensioner assemblies.

4. Check the SRS components using the table below.

Replace any SRS components showing visible signs of damage. (dents, cracks and deformation, etc).

5. Install new front air bag modules, knee air bag module, crash zone sensor assembly, bracket and seat belt pre-tensioner assemblies.

6. Perform self-diagnosis using M.U.T.-III SE or air bag warning light. Refer to DTCIndexDTC Index

. for details.

Ensure entire SRS operates properly.

7. After the work is completed, check that no malfunction is detected by air bag warning light.

8. If an emergency call is made after the air bag has been deployed, the following operations must be performed.

With M.U.T.-III SE

Select “Automatic notification prevention lock release” mode of “IVC” using M.U.T.-IIISE.
Select "OK" to unlock.

SRS INSPECTION (FOR FRONTAL COLLISION)

Part	Inspection
Driver air bag module	If the driver air bag has deployed: REPLACE Install with new fasteners.
Driver knee air bag module	If the driver knee air bag has deployed: REPLACE Install with new fasteners.
Front passenger air bag module	If the front passenger air bag has deployed: REPLACE Install with new fasteners.
Front passenger knee air bag module	If the front passenger knee air bag has deployed: REPLACE Install with new fasteners.
Crash zone sensor	If any of the front air bags or seat belt pre-tensioners* have been activated: REPLACE the crash zone sensor and bracket with new fasteners. *: Confirm seat belt pre-tensioner activation using M.U.T.-III SE only.
Seat belt pre-tensioner assemblies (All applicable locations: buckle, retractor, lap outer)	REPLACE the seat belt pre-tensioner assembly. Install with new fasteners. *: Confirm seat belt pre-tensioner activation using M.U.T.-III SE only.
Diagnosis sensor unit	If any of the SRS components have been activated: REPLACE the diagnosis sensor unit. Install with new fasteners.
Steering wheel	Visually check steering wheel for deformities. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities. Install driver air bag module into the steering wheel to check fit and alignment with the wheel. Check steering wheel for excessive free play. If no damage is found, reinstall. If damaged - REPLACE.
Spiral cable	If the driver front air bag has deployed: REPLACE the spiral cable.
Occupant detection system (Passenger seat)	Remove passenger seat assembly. Check control unit case for dents, cracks of deformities. Check connectors for damage and terminals for deformities. Check seat frame and cushion pan for dents or deformities. If no damage is found, reinstall seat with new fasteners. If damaged - REPLACE seat cushion assembly with new fasteners. Perform zero point reset function after front passenger seat is installed in the vehicle and all bolts are tightened to specification. Refer to Work Procedure.
Harness and connectors	Check connectors for poor connection, damage, and terminals for deformities. Check harness for binding, chafing, cuts, or deformities. If no damage is found, reinstall the harness and connectors. If damaged - REPLACE the damaged harness. Do not attempt to repair, splice or modify any SRS harness.
Instrument panel assembly	If the front passenger air bag and/or knee air bag has deployed: REPLACE the instrument panel assembly. (integrated type)