Air Bag(s) Arming and Disarming: Service and Repair

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION

HINT
* In the airbag system, the center airbag sensor assembly, front airbag sensors, door side airbag sensors and side airbag sensors are collectively referred to as the airbag sensors.
* The steering pad, driver side knee airbag assembly, front passenger side knee airbag assembly, front passenger airbag assembly and front seat side airbag assemblies are collectively referred to as the SRS parts.

1. PRECAUTION FOR HANDLING SRS SYSTEM

(a) Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Furthermore, if a mistake is made when servicing the SRS, it is possible that the SRS may fail to operate when required. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the following items carefully, then follow the procedures exactly as indicated in the repair manual.

2. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL

(a) As SRS malfunctions are difficult to confirm, the Diagnostic Trouble Codes (DTCs) become the most important source of information when troubleshooting. When troubleshooting the SRS, always check for DTCs before disconnecting the battery.

(b) Work must be started at least 90 seconds after the engine switch is turned off and the cable is disconnected from the negative (-) battery terminal.

CAUTION:
* The SRS is equipped with a back-up power source. If work is started within 90 seconds after disconnecting the cable from the negative (-) battery terminal, the SRS may deploy.
* Never use a back-up power source (battery or other) to avoid clearing the system memory. The back-up power source may inadvertently power the SRS and cause it to deploy.
NOTICE:

w/ Navigation System for HDD:

After the engine 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 engine switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

(c) When the cable is disconnected from the negative (- ) battery terminal, the memory of various systems will be cleared. Because of this, be sure to make a record of the contents memorized in each system before starting work. When work is finished, adjust each system to its previous state.