Canada - Restraints - SRS Lamp ON, DTC B1821/B1826 Set

T-TCI-3817

September 12, 2012

SRS MIL "ON" B1821 AND/OR B1826

Service Category
Vehicle Interior

Section
Supplemental Restraint Systems

Market
Canada





APPLICABILITY:

INTRODUCTION:

Some 2011 and 2012 model year Sienna vehicles may exhibit an intermittent SRS lamp "ON" condition with Diagnostic Trouble Code (DTC) B1821 and/or B1826 stored in memory (in both current and history). The terminal crimping for the side (seat) airbag has been improved to address this condition.

PRODUCTION CHANGE INFORMATION:





This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown.





PARTS INFORMATION:








REQUIRED TOOLS & EQUIPMENT:





WARRANTY INFORMATION:

REPAIR PROCEDURE:

1. Follow the diagnostic procedure in the Repair Manual.

Refer to the ETAS/TIS library, applicable model year Sienna Repair Manual:

B1821:

^ 2011 - 2012 Sienna:
Vehicle Interior- Supplemental Restraint Systems - "Supplemental Restraint Systems: Airbag System: B1820/55-B1823/55: Short in Side Squib RH Circuit"

B1826:

^ 2011 - 2012 Sienna:
Vehicle Interior- Supplemental Restraint Systems - "Supplemental Restraint Systems: Airbag System: B1825/56-B1828/5& Short in Side Squib LH Circuit"

2. After confirming the vehicle condition, replace the seat side airbag that corresponds to the DTC.

NOTE

If any other SRS DTCs are found refer to the appropriate repair manual for diagnosis and repair.

Refer to the ETAS/TIS library, applicable model year Sienna Repair Manual:

Removal of Seat Side Airbag:

^ 2011 - 2012 Sienna:
Vehicle Interior- Supplemental Restraint Systems - "Supplemental Restraint Systems: Front Seat Side Airbag Assembly: Removal"

Installation of New Seat Side Airbag:

^ 2011 - 2012 Sienna:
Vehicle Interior- Supplemental Restraint Systems - "Supplemental Restraint Systems: Front Seat Side Airbag Assembly: Installation"

3. Perform zero point calibration and sensitivity check (for front passenger seat).

4. Initialize power systems (windows, moon, roof, etc.). Refer to the appropriate Repair Manual in the ETAS/TIS library:

^ 2011 - 2012 Sienna:
General - Introduction - "Repair Instruction: Initialization"

5. Clear all DTCs in the SRS system.

6. Test drive vehicle.

7. Perform Health Check and verify repair.

8. Dispose of the old airbag in accordance with local regulations.


NOTE:
Issue of the Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.

© 2012 Toyota Motor Sales, Canada