Diesel Data: Automotive Repair

Air Bag Systems: Service and Repair




SRS Component Replacement/Inspection After Deployment

NOTE:

- Before doing any SRS repairs, use the HDS SRS Menu Method to check for DTCs; refer to the DTC Troubleshooting Index for the less obvious deployed parts (front seat belt tensioners, front impact sensors, side impact sensors, etc.).
- Do not replace the ODS unit unless it is physically damaged or a specific fault was found during DTC troubleshooting. Because it could complicate troubleshooting other DTCs.
- After a vehicle collision, do the ODS unit operation check ODS Unit Operation Check.

After a collision where the front seat belt tensioners deployed, replace these items:

- SRS unit
- Front seat belt(s)
- Front seat belt buckle tensioner(s)
- Front impact sensor(s)

After a collision where the front airbag(s) deployed, replace these items:

- SRS unit
- Deployed front airbag(s)
- Front seat belt(s)
- Front seat belt buckle tensioner(s)
- Front impact sensor(s)

After a collision where the side airbag deployed, replace the items for the side(s) that deployed:

- SRS unit
- Deployed side airbag(s)
- Side impact sensor(s) (first)
- Side impact sensor(s) (second)
- C-pillar lower trim
- All related trim clips
- Side airbag module holder
- Seat frame and related parts

After a collision where the side curtain airbag has deployed, replace the items for the side(s) that deployed:

- SRS unit
- Deployed side curtain airbag(s)
- Front seat belt(s)
- Front seat belt buckle tensioner(s)
- Side impact sensor(s) (first)
- Side impact sensor(s) (second)
- Roll rate sensor
- Rear safing sensor
- Roof trim
- A-pillar trim
- Rear roof trim
- Upper quarter window trim
- D-pillar trim
- Front grab handle
- Rear grab handle
- All related trim clips
- Sunvisor

After a moderate to severe side or rear collision, inspect for any damage on the side curtain airbag or other related components. Replace the components as needed.

A-Pillar Trim





C-Pillar Trim





Upper Quarter Window Trim





D-Pillar Trim





During the repair process, inspect these areas:

- Inspect all the SRS wire harnesses. Replace, do not repair, any damaged harnesses.
- Inspect the cable reel for heat damage. If there is any damage, replace the cable reel Service and Repair.

After the vehicle is completely repaired, turn the ignition switch to ON (II). If the SRS indicator comes on for about 6 seconds and then goes off, the SRS is OK. If the indicator does not function properly, use the HDS to read the DTC. If you cannot retrieve a code, go to SRS Symptom Troubleshooting.

Checking and Adjusting the Headliner/Pillar Trim Overlap

To prevent the side curtain airbag from deploying and damaging the pillar trim (A-pillar trim, C-pillar trim, D-pillar trim, upper quarter pillar trim), the overlap between the headliner and pillar trim must be less then 8 mm (0.3 in). To check the overlap, do this:

1. Install the headliner (A) and the pillar trim (B).






2. Apply masking tape (A) the headliner (B), mark the upper edge of the pillar trim (C).






3. Remove the pillar trim, and measure the headliner overlap.

- If the overlap is less than 8 mm (0.3 in), remove the tape, and install the pillar trim.
- If the overlap is more than 8 mm (0.3 in), go to step 4.





4. Carefully trim the headliner with a utility knife, reducing the overlap to less than 8 mm (0.3 in).





5. Remove the tape, and install the pillar trim.