Canada - Restraints - Erratic Passenger Air Bag Lamp Operation

Bulletin
TSB2197

Issue Date
2005-03-02

Market
Canada

Title
PASSENGER AIRBAG INDICATOR LAMP

Component
BODY ELECTRICAL

Models
'04 - '05 Camry, Highlander, & Solara

INTRODUCTION:
The passenger airbag indicator lamp may switch from ON to OFF for front seat passengers weighing approximately less than 100 lbs (45 kilograms), depending on their seating position. It is important for the front seat passengers to know that proper operation of the advanced frontal airbag system is highly dependent on the pressure placed on the seat bottom. Situations that add or subtract sensed weight can result in occupant misclassification. To minimize this situation:
- Check seating posture.
- Passengers should be seated upright with their back against the seat back and feet on the floor.

- Check loading conditions.
- Extra weight from items such as bags or groceries or toys hanging on the seat back can add to the sensed weight of the front seat passenger.
- A rear seat passenger lifting the front seat with their legs, objects placed under the front seat or the front seatback in contact with the rear seat can subtract from the sensed weight of the front seat passenger.

If the passenger airbag indicator lamp continues to switch ON to OFF after checking the above conditions, perform the following repair procedure.

NOTE:
The safest place for children is in the rear seat. Please note that Toyota recommends that you never install a rear-facing child restraint in the front passenger seat, even if the passenger "Airbag OFF" lamp is illuminated. Please refer to you Owner's Manual for additional details.

APPLICABLE VEHICLES:
- 2004 - 2005 model year Camry, Highlander, & Solara vehicles produced BEFORE the Production Change Effective VINs shown below.






PRODUCTION CHANGE INFORMATION:






PARTS INFORMATION:






WARRANTY INFORMATION:






REQUIRED SSTs:

REPAIR PROCEDURE:
1. Unfasten passenger seat and rock the assembly back providing access to the underside of the seat. For information to unfasten the passenger seat, refer to the ETAS 2004 - 2005 model year Camry, Highlander or Solara vehicle Repair Manual: Seat: Front Seat Assembly: Overhaul.
2. Disconnect the negative terminal of the vehicle battery.
3. Disconnect electrical connectors from Occupant Detection ECU.
4. Remove and replace the Occupant Detection ECU.
5. Reinstall the seat assembly. For more information, refer to ETAS 2004 - 2005 model year Camry, Highlander or Solara vehicle Repair Manual: Seat: Front Seat Assembly: Overhaul.

Torque Specification for Seat Mounting Bolts: Camry, Highlander, Solara = 37 N-m (375 kgf-cm, 27 ft-lbf)

6. Reconnect the negative terminal of the vehicle battery.
7. Perform Zero Point Calibration and Sensitivity Check following prompts in the Diagnostic tool found under the Occupant Detect menu item (refer to TSB No. 1332).
8. Reinitialize systems affected by the disconnection of the vehicle battery.

NOTE:
Issue of this 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.