Front Seat Assembly (For Power Seat)
NOTE: The content of this article/image reflects the changes identified in TSB SB0252-08.T-SB-0252-08
Repair Manual Supplement: SRS Light "ON" - DTC B0111/B0116 - Open Side Squib Circuit
Service Category: Vehicle Interior
Section: Supplemental Restraint Systems
Market: USA
Applicability:
2005-2008 Sienna
TSB SUPERSESSION NOTICE:
The information contained in this TSB supersedes TSB No. EL001-08.
- Applicability has been updated to exclude 2004 model year vehicles.
- The repair procedure has been updated.
TSB No. EL001-08 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding.
Introduction
For vehicles that exhibit Diagnostic Trouble Code (DTC) B0111 and/or B0116 a new service part has been made available for 2005-2008 model year Sienna vehicles. Please refer to the following enhanced repair instructions for the proper installation procedure of the new service parts.
NOTE: This TSB is not applicable to 2004 MY Sienna. If you encounter a 2004 MY Sienna with code B0111/B0116, diagnose per Repair Manual. If it is determined that the root cause is related to the side squib, the seat back will need to be replaced.
Warranty Information
APPLICABLE WARRANTY:
- This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle's in-service date.
- Warranty application is limited to correction of a problem based upon a customer's specific complaint.
Parts Information
Required Tools & Equipment
NOTE: Additional SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
NOTE:
- Additional TIS techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787.
- The Toyota Diagnostic Tester and CAN Interface Module may also be used to perform the service procedures listed in this bulletin.
Airbag Disposal
Please refer to TSB No. SS004-07 "SRS Component Disposal as Hazardous Material Treatment" for proper disposal method of the side airbag assembly.
Diagnostic Procedure
Follow the diagnostic procedure:
- B0111 Open In Side Squib RH Circuit
- B0116 Open In Side Squib LH Circuit
B Code Charts
NOTE: If no concern is identified after inspecting the floor harness and the center airbag sensor assembly, please follow the repair procedure below to replace the corresponding side airbag assembly.
Repair Procedure: Power Seat
Power Seat (Driver and Passenger):
CAUTION:
- Always wear safety gloves because the edges of the seatback frame and seat adjuster are sharp and may cause injury.
- Work must be started more than 90 seconds AFTER the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery. (The SRS is equipped with a back-up power source. If work is started within 90 seconds from disconnecting the negative (-) terminal cable of the battery, the SRS may deploy.)
NOTE:
- Installation is in the reverse order of removal. However, special points concerning installation are indicated.
- Use the same procedures for the driver and passenger seat.
- Be careful NOT to damage the body.
Figure 2:
1. Remove the headrest assembly.
2. Remove the seat assembly.
A. Using the plastic pry tool pry off the 2 seat track covers.
B. Disconnect the connectors under the seat.
C. Remove the 4 bolts and the seat assembly.
NOTE: Place protective cover over door sill. Be careful NOT to damage the body.
3. Remove the front seat side table leg cover.
Using the plastic pry tool disengage the claws and remove the seat side table leg cover.
4. Remove the front seat side table.
A. Remove the 4 nuts and seat side table.
B. Remove the 2 clips and seat side table cover.
Figure 3:
5. Using the plastic pry tool remove the reclining power seat switch knob.
Figure 4:
6. Using the plastic pry tool remove the slide and vertical power seat switch knob.
7. Remove the seat cushion shields.
A. Remove the 7 screws.
B. Using the plastic pry tool disengage the 4 claws and clip and remove the outer seat cushion shield together with the inner seat cushion shield and No.1 inner seat cushion shields.
Figure 5:
8. Remove the armrest assembly.
Figure 6:
A. Using the plastic pry tool pry out the armrest cap.
B. Remove the bolt and armrest assembly.
NOTE: Be careful NOT to damage the seat cushion cover.
9. Remove the front seatback board.
Figure 7:
A. Disengage the clips.
B. Remove the seatback board by pulling it out in the arrow mark direction.
C. Remove the lower carpet trim piece from the seatback.
10. Remove the seatback cover with pad.
Figure 8:
A. Remove the hog rings and disengage the hooks.
B. Remove the bolt and disengage the seatback cover bracket.
NOTE: Disconnect the seat heater connector (if equipped).
C. Remove the seatback cover with pad.
Figure 9:
D. Remove the front seat head rest support by disengaging the claw while sliding the seat cover oft.
11. Remove the side airbag assembly.
A. Remove the 2 nuts from the side airbag assembly.
B. Remove the 1 clip holding the airbag wire harness.
NOTE: The remaining 5 clips holding the wire harness will be removed when installing the new airbag and wire harness.
12. Install the NEW side airbag assembly.
A. Place the side airbag into the seat frame with the wire harness on the top.
Figure 10:
Figure 11:
B. Secure the side airbag with 2 NEW nuts.
Torque: 5.5 Nm (56 kgf-cm, 48 in-lbf)
C. Using Figures 12 through 18 remove the original wire harness while routing the new wire harness and attach the 6 retaining clips to the seat frame.
Figure 12:
Figure 13:
Figure 14:
Figure 15:
Figure 16:
Figure 17:
Figure 18:
13. Install the seatback pad and then the cover.
A. Install the seatback cover bracket with the bolt.
Torque: 5.5 Nm (56 kgf-cm, 48 in-lbf)
B. Place the outside strap on first and then the inside strap.
NOTE:
- For a vehicle with side airbag, the side airbag may NOT be activated normally unless the seatback cover is securely installed.
- After installing the bracket, check that the strap is NOT twisted.
Figure 19:
Figure 20:
C. Reconnect the seat heater connector (if equipped).
Figure 21:
D. Using hog ring pliers install NEW hog rings and hooks.
NOTE:
- Be careful NOT to damage the cover.
- When installing the hog rings, take care to minimize wrinkles as much as possible.
14. Install the armrest assembly.
A. Install the armrest with the bolt.
Torque: 20 Nm (200 kgf-cm, 14 ft-lbf)
B. Install the armrest cap.
15. Install the front seat side table.
Install the seat side table with 4 nuts.
Torque: 13 Nm (133 kgf-cm, 10 ft-lbf)
16. Install the front seat assembly.
Figure 22:
A. Place the seat assembly in the cabin.
NOTE: Be careful NOT to damage the body.
B. Connect the connectors under the seat assembly.
C. Tighten the 2 bolts on the front side of the seat assembly.
Torque: 37 Nm (375 kgf-cm, 27 ft-lbf)
D. Tighten the 2 bolts on the rear side of the seat assembly.
Torque: 37 Nm (375 kgf-cm, 27 ft-lbf)
E. Install the 2 seat track covers.
17. Check SRS warning lights.
18. Inspect power seat operation.
19. Check seat heater operation.
20. Initialize the front passenger Occupant Classification System (OCS) (passenger seat only). Follow the appropriate initialization procedure.
21. Initialize power Systems (windows, moon roof, etc). Refer to appropriate service bulletin.
22. Refer to the Airbag Disposal section to dispose of the side airbag assembly.
Airbag Disposal
Please refer to TSB No. SS004-07 "SRS Component Disposal as Hazardous Material Treatment" for proper disposal method of the side airbag assembly.