Accident With or Without Air Bag Deployment - Component Replacement
and 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.
After any collision, inspect the following components:
• | IP Knee Bolsters - 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. |
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.
Accident With Frontal Air Bag and Seat Belt Pretensioner Deployment
- Component Replacement and Inspections
After a collision involving a seat belt pretensioner deployment and
frontal air bag deployment, replace the following components:
• | Inflatable restraint I/P module |
• | Inflatable restraint steering wheel module |
• | Driver seat belt pretensioner |
• | Passenger seat belt pretensioner |
• | Inflatable restraint sensing and diagnostic and seat belt pretensioner
module (SDM) |
If you detect any damage to the mounting points or mounting hardware,
repair or replace the mounting points and mounting hardware as needed. After
a collision involving frontal air bag deployment, inspect the Inflatable
restraint steering wheel module coil and the coil wiring pigtail for
melting, scorching, or other damage due to excessive heat. Perform
this component inspection in addition to the inspections indicated above
in Accident With or Without Air Bag Deployment. If you detect any
damage to the inflatable restraint steering wheel module coil, replace
the component.
Accident With Seat Belt Pretensioner Deployment - Component Replacement
and Inspections
After a collision involving a seat belt pretensioner deployment, replace
the following components:
• | Driver seat belt pretensioner |
• | Passenger seat belt pretensioner |
If you detect any damage to the mounting points or mounting hardware,
repair or replace the mounting points and mounting hardware as needed. If
Current DTC 56 is set, the SDM must also be replaced. This is because
the vehicle has been involved in 3 pretensioner-only deployments, which
is the maximum number of pretensioner-only deployments allowed by one SDM.
Use the scan tool to verify that the seat belt pretensioners have deployed
three times by viewing the SIR scan tool data list. Refer to the SIR
Scan Tool Data List
.
Accident With Driver Side Air Bag Deployment - Component Replacement
and Inspections
After a collision involving a driver side air bag deployment, replace
the following components:
• | Inflatable restraint driver seat module |
• | Inflatable restraint side impact sensor (LH) |
• | Inflatable restraint side impact sensor (LH) mounting bracket |
If you detect any damage to the mounting points or mounting hardware,
repair or replace the mounting points and mounting hardware as needed. After
a collision involving driver side air bag deployment, inspect the LH front
door harness, LH door seal and driver seat for cutting/chafing or
other damage due to a side impact. Perform this component inspection
in addition to the inspections indicated above in Accident With or
Without Air Bag Deployment. If current DTC 56 is set, the SDM
must also be replaced. This is because the vehicle has been involved in
three driver side air bag deployments, which is the maximum number of driver
side air bag deployments allowed by one SDM. Use the scan tool to verify
that the driver side air bag has deployed three times by viewing the SIR
scan tool data list. Refer to the SIR
Scan Tool Data List
.
Accident With Passenger Side Air Bag Deployment - Component Replacement
and Inspections
After a collision involving a passenger side air bag deployment, replace
the following components:
• | Inflatable restraint passenger seat module |
• | Inflatable restraint side impact sensor (RH) |
• | Inflatable restraint side impact sensor (RH) mounting bracket |
If you detect any damage to the mounting points or mounting hardware,
repair or replace the mounting points and mounting hardware as needed. After
a collision involving passenger side air bag deployment, inspect the RH
front door harness, RH door seal and passenger seat for cutting/chafing
or other damage due to a side impact. Perform this component inspection
in addition to the inspections indicated above in Accident With or
Without Air Bag Deployment. If current DTC 56 is set, the SDM
must also be replaced. This is because the vehicle has been involved in
three passenger side air bag deployments, which is the maximum number of
passenger side air bag deployments allowed by one SDM. Use the scan tool
to verify that the passenger side air bag has deployed three times by viewing
the SIR scan tool data list. Refer to the SIR
Scan Tool Data List
.
Inflatable Restraint Side Impact Sensors - Component Replacement and
Inspections
The inflatable restraint side impact sensor replacement policy requires
replacing the inflatable restraint side impact 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.
For example, a moderate collision where the front of the vehicle
impacts a tree. If the vehicle has a SIR sensor mounted forward of
the radiator, it must be replaced.
• | Replace the sensor whether or not the relevant side air bag has
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 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.