CAUTION: Proper operation of the Supplemental Inflatable Restraint (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 of the air bag(s) in a frontal
collision or deployment of the air bag(s) 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.
| • | IP Knee Bolsters and Mounting Points - Inspect the knee bolsters
for bending, twisting, buckling, or any other type of damage. |
| • | IP brackets, braces, etc. - Inspect for bending, twisting, buckling,
or any other type of damage. |
| • | IP Cross Car Beam - Inspect for bending, twisting, buckling, or
any other type of damage. |
| • | IP 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. |
Frontal Inflator Module Deployment - Component Replacement and Inspections
After a collision involving inflator module deployment, replace the
following components.
| • | Inflatable restraint electronic frontal sensors (EFS) |
| • | Inflatable restraint IP module |
| • | Inflatable restraint seat belt pretensioners |
| • | Inflatable restraint sensing and diagnostic module (SDM) |
| • | Inflatable restraint steering wheel module |
Perform additional inspections on the following components.
| • | Inflatable restraint 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 inflatable restraint
IP module, steering wheel module, and SDM - Inspect for any damage and repair
or replace each component as needed. |
Side Inflator Module Deployment - Component Replacement and Inspections
After a collision involving a side inflator module deployment, replace
the following components on the side of the impact.
| • | Inflatable restraint seat belt pretensioners |
| • | Inflatable restraint sensing and diagnostic module (SDM) |
| • | Inflatable restraint side impact sensor (SIS) |
| • | Inflatable restraint side impact module |
Perform additional inspections on the following components.
| • | Mounting points or mounting hardware for the inflatable restraint
SIS and side impact module 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 inflatable restraint
SDM - Inspect for any damage and repair or replace each component as
needed. |
Sensor Replacement Guidelines
The EFS and 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.
