Accident With or Without Air Bag Deployment -- Component Inspections
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.
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 side impact air bag(s)
in a side impact collision or deployment of the side impact air
bag(s) for conditions less severe than intended.
After any collision, inspect the following components as indicated. If you
detect any damage, replace the component. If you detect any damage to the
mounting points or mounting hardware, repair the component or replace the
hardware as needed.
| • | The I/P knee bolsters and mounting points - Inspect the knee bolsters
for bending, twisting, buckling, or any other type of damage. |
| • | The I/P brackets, braces, etc. - Inspect for bending, twisting, buckling,
or any other type of damage. |
| • | The I/P cross car beam - Inspect for bending, twisting, buckling, or
any other type of damage. |
| • | The I/P mounting points and brackets - Inspect for bending, twisting,
buckling, or any other type of damage. |
| • | The seats and seat mounting points - Inspect for bending, twisting,
buckling, or any other type of damage. |
| • | The roof and headliner mounting points. |
Accident With Frontal Air Bag Deployment -- Component Replacement and
Inspections
After a collision involving air bag deployment, replace the following components.
| • | Inflatable restraint I/P module |
| • | Inflatable restraint steering wheel module |
| • | Inflatable restraint sensing and diagnostic module (SDM) |
| • | Inflatable restraint front end sensor |
| • | Inflatable restraint side impact modules, front seat air bags, if deploy |
| • | Inflatable restraint seat belt pretensioners |
Perform additional inspections on the following components.
| • | Steering wheel module coil and the coil wiring pigtail - Inspect for
melting, scorching, or other damage due to excessive heat. |
| • | Mounting points or mounting hardware for the IP module, steering wheel
module, SDM, and pretensioners - Inspect for any damage and repair or replace
each component as needed. |
Accident With Side Air Bag Deployment -- Component Replacement and
Inspections
After a collision involving side air bag deployment, replace the following
components.
| • | Inflatable restraint side impact sensors (SIS), Left/Right, on the
side of the impact. |
| • | Inflatable restraint roof rail module, Left/Right, on the side of the
impact. |
| • | Inflatable restraint sensing and diagnostic module (SDM). |
| • | Inflatable restraint seat belt pretensioner |
Perform additional inspections on the following components.
| • | Mounting points or mounting hardware for the SIS, and side impact module
(LF/RF) on the side of impact - Inspect for any damage and repair or replace
each component as needed. |
| • | Mounting points or mounting hardware for the roof rail module (left/right)
on the side of impact - Inspect for any damage and repair or replace each component
as needed. |
| • | Mounting points or mounting hardware for the SDM and seat belt pretensioners
- Inspect for any damage and repair or replace each component as needed. |
Sensor Replacement Guidelines
The SIR/side air bag sensor 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.
An example of this would be a moderate collision where the front of the vehicle
impacts a tree. If the vehicle has an SIR sensor mounted forward of the radiator,
it must be replaced.
| • | 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 slight bending of the mounting
bracket or cuts in the wire insulation, can cause improper operation of the
SIR/side air bag sensing system. Do not try to determine whether the sensor
is undamaged, replace the sensor. Also, if you follow a Diagnostic Trouble
Code (DTC) table and a malfunctioning sensor is indicated, replace the
sensor.
