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.
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.
• | 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. |
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. If you detect
any damage to the mounting points or mounting hardware, repair or replace
the mounting points and mounting hardware as needed.
• | Inflatable restraint I/P module |
• | Inflatable restraint steering wheel module |
• | Inflatable restraint steering wheel module coil |
• | Driver seat belt pretensioner |
• | Passenger seat belt pretensioner |
• | Inflatable restraint sensing and diagnostic and seat belt pretensioner
module (SDM) |
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,
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 Seat Belt Pretensioner Deployment - Component Replacement
and Inspections
After a collision involving a seat belt pretensioner deployment, replace
the following components. If you detect any damage to the mounting points
or mounting hardware, repair or replace the mounting points and mounting
hardware as needed.
• | Driver seat belt pretensioner |
• | Passenger seat belt pretensioner |
If Current DTC 56 is set, the SDM must also be replaced. This
is because the vehicle has been involved in 3 pretensioner-only deployment
collisions, the maximum number of pretensioner-only deployments allowed
with one SDM. Select Reset Pretensioner Devices from the SIR Data List
using the scan tool to verify that the seat belt pretensioners have deployed
3 times.
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. If you detect any damage to the mounting points
or mounting hardware, repair or replace the mounting points and mounting
hardware as needed.
• | Inflatable restraint driver seat module |
• | Inflatable restraint side impact sensor (LH) |
• | Inflatable restraint side impact sensor (LH) mounting bracket |
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 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.
If Current DTC 56 is set, the SDM must also be replaced. This
is because the vehicle has been involved in 3 driver side air bag deployment
collisions, the maximum number of driver side air bag deployments allowed
with one SDM. Select and read Reset Driver Side Air Bag from the SIR Data
List using the scan tool to verify that the driver side air bag has deployed
3 times.
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. If you detect any damage to the mounting points
or mounting hardware, repair or replace the mounting points and mounting
hardware as needed.
• | Inflatable restraint passenger seat module |
• | Inflatable restraint side impact sensor (RH) |
• | Inflatable restraint side impact sensor (RH) mounting bracket |
After a collision involving passenger side air bag deployment, inspect
the RH front door harness, RH 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 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.
If Current DTC 56 is set, the SDM must also be replaced. This
is because the vehicle has been involved in 3 passenger side air bag deployment
collisions, the maximum number of passenger side air bag deployments allowed
with one SDM. Select and read Reset Passenger Side Air Bag from the SIR
Data List using the scan tool to verify that the passenger side air bag
has deployed 3 times.
Side Impact Sensor Replacement Guidelines
The SIR 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.