Restraints - Erratic Passenger Air Bag Lamp Operation
ELECTRICALEL005-06
Title:
PASSENGER AIRBAG INDICATOR LAMP
Models:
'04 - '05 Camry, Highlander, & Solara,
'05 Matrix & Corolla
April 5, 2005
Introduction
The passenger airbag indicator lamp may switch from ON to OFF for front seat passengers weighing approximately less than 100 pounds, 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, and Solara vehicles produced BEFORE the Production Change Effective VINs shown.
^ 2005 model year Matrix and Corolla vehicles produced BEFORE the Production
Change Effective VINs shown.
Warranty Information
Applicable Warranty*:
This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for 36 months or 36,000 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.
Production Change Information
Parts Information
Required SSTs
Repair Procedure
1. Unfasten the passenger seat and rock the assembly back providing access to the underside of the seat. For information on removing the seat, refer to the Technical Information System (TIS): 2004 or 2005 model year applicable 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 information on removing the seat, refer to TIS: 2004 or 2005 model year applicable 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)
Corolla, Matrix = 47 N.m (480 kgf.cm, 35 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. EL002-04, "Occupant Classification System Initialization [DTC B1150 & B1650").
8. Reinitialize systems affected by the disconnection of the vehicle battery.