Caution: Proper operation of the SIR sensing system requires that any repairs to the
vehicle structure return the vehicle structure to the original production configuration.
Not properly repairing the vehicle structure could cause non-deployment in a collision
or deployment for conditions less severe than intended.
After any collision, inspect the following components as indicated. If damage is detected, replace the component. If damage to the mounting points or mounting hardware is detected, repair the component or replace the hardware as needed.
| • | Instrument panel (I/P) knee bolsters and mounting points--Inspect the knee bolsters for bending, twisting, buckling, or any other type of damage. |
| • | I/P brackets, braces, etc.--Inspect for bending, twisting, buckling, or any other type of damage. |
| • | I/P cross car beam--Inspect for bending, twisting, buckling, or any other type of damage. |
| • | I/P mounting points and brackets--Inspect for bending, twisting, buckling, or any other type of damage. |
| • | Seats and seat mounting points--Inspect for bending, twisting, buckling, or any other type of damage. |
| • | Passenger seat bottom with passenger presence system (PPS)--Check for any dtcs or problems that may cause the PPS not to function properly. |
| • | The roof and headliner mounting points |
Accident With Frontal Air Bag Deployment - Component Replacement and Inspections
After a collision involving inflator module deployment, replace the following components.
Important: The front passenger seat is equipped with a PPS, which detects an occupant. If the requirements for disabling the I/P air bag are met then the PPS will communicate with the SDM to disable/turn off the I/P air bag, even
in a accident. For more information on the PPS refer to
SIR System Description and Operation
.
| • | Inflatable restraint I/P module, if deployed and after performing the necessary inspections listed above. |
| • | Inflatable restraint steering wheel module |
| • | Inflatable restraint seat belt retractor pretensioners |
| • | Inflatable restraint sensing and diagnostic module (SDM) |
Perform additional inspections on the following components:
| • | Steering wheel module coil and coil wiring pigtail--Inspect for melting, scorching, or other damage due to excessive heat. |
| • | Mounting points and mounting hardware for the I/P, steering wheel module, seat belt retractor pretensioners, and SDM--Inspect for any damage and repair or replace each component as needed. |
Accident With Roof Rail Air Bag Deployment - Component Replacement and Inspections
After a collision involving a roof rail module deployment, replace the following components on the side of the impact.
| • | Inflatable restraint seat belt retractor pretensioners |
| • | Inflatable restraint roof rail modules |
| • | Inflatable restraint SDM |
| • | Inflatable restraint side impact sensors (SIS) |
Perform additional inspections on the following components.
| • | Mounting points or mounting hardware for the roof rail module, seat belt retractor pretensioner, and SIS on the side of the impact--Inspect for any damage and repair or replace each component as needed. |
| • | Mounting points or mounting hardware for the SDM--Inspect for any damage and repair or replace each component as needed. |
Sensor Replacement Guidelines
The SIS replacement policy requires replacing sensors in the area of accident damage. The area of accident damage is defined as the portion of the vehicle which is crushed, bent, or damaged due to a collision.
| • | Replace the sensor whether or not the air bags have deployed. |
| • | Replace the sensor even if it appears to be undamaged. |
Sensor damage which is not visible, such as a slight bending of the mounting bracket or cuts in the wire insulation, can cause improper operation of the sensor. Do not try to determine whether the sensor is undamaged. Replace the sensor.
