Air Bag(s) Arming and Disarming: Service and Repair
SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: PRECAUTION
CAUTION:
* The vehicle is equipped with a Supplemental Restraint System (SRS), which consists of a steering pad, front passenger airbag, curtain shield airbag, front seat side airbag, active headrest inflator, driver side knee airbag, front passenger side knee airbag, rear seat side airbag, seat cushion airbag, seat belt pretensioner, center airbag sensor, front airbag sensor, side airbag sensor, rear airbag sensor, occupant classification ECU and seat position airbag sensor. Failure to carry out service procedures in the correct sequence could cause SRS parts to unexpectedly deploy and possibly lead to serious injuries. Furthermore, if a mistake is made when servicing SRS parts, they may fail to operate when required. Before performing servicing (including installation/removal, inspection and replacement of parts), be sure to read the following precautions.
* Before starting work, wait at least 90 seconds after the engine switch is turned off and after the cable of the negative (-) battery terminal is disconnected. (SRS parts are equipped with a backup power source. If work is started within 90 seconds of turning the engine switch off and disconnecting the cable from the negative (-) battery terminal, SRS parts may deploy.)
* Do not expose SRS parts directly to hot air or flames.
* Be sure to perform the initialization of the occupant classification ECU if any of the following conditions occur. If the initialization is not performed, the SRS may not operate properly.
(1) The occupant classification ECU is replaced.
(2) Accessories (seatback tray, seat cover, etc.) are installed onto the vehicle.
(3) The passenger seat is removed from the vehicle, and then reinstalled or replaced.
(4) The passenger airbag ON/OFF indicator light (OFF) comes on when the passenger seat is not occupied.
(5) The vehicle is brought to the workshop for repair due to an accident or collision.
Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal
* If the vehicle is equipped with a mobile communication system, refer to the precaution in the INTRODUCTION section.
* After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.
* When disconnecting the negative (-) battery cable, initialize the following systems after the cable is reconnected.