Supplemental Restraint System (SRS)
SRS SYSTEM COMPONENTS INFORMATIONFailure to carry out service operations in the correct sequence could cause the airbag system to unexpectedly deploy during servicing, possibly leading to a serious accident.
Further, if a mistake is made in servicing the airbag system, it is possible the airbag may fail to operate when required. Before performing servicing (including removal or installation of parts, inspection or replacement), be sure to read the following items carefully, then follow the correct procedure described in the repair manual
1. Work must be started after approximate. 30 seconds or longer from the time the ignition switch is turned to the LOCK position power source to that if work is started within 30 seconds of disconnection the negative (-) terminal cable of the battery, the airbag may be deployed.)
When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio systems will be cancelled. So before starting work, make a record of the contents memorialized by the audio memory system. Then when work is finished, reset the audio system as before and adjust the clock.
2. Malfunction symptoms of the airbag system are difficult to confirm, so the diagnostic codes become the most important source of information when troubleshooting.
When troubleshooting the airbag system, always inspect the diagnostic codes before disconnecting the battery.
3. Never use airbag parts from another vehicle. When replacing parts, replace them with new parts.
4. Never attempt to disassemble and repair the airbag modules, SRSCM, Clock spring and Air-bag wiring harness in order to reuse it.
5. If the SRSCM or air-bag module have been dropped, or if there are cracks, dents or other defects in the case, bracket or connector, replace them with new ones.
6. After work on the airbag system is completed, perform the SRS Service Reminder Indicator (SRI) check.
SRS SERVICE REMINDER INDICATOR CHECK
When the ignition key is turned to "ON" position, the SRS service reminded indicator will illuminate for 6 seconds and then turn off. This means that the system is functioning properly.
AIR-BAG MODULE (with AIRBAG)
1. When removing the air-bag module or handing a new air-bag module, it should be placed with the pad top surface facing up. In this case, the twin-lock type connector lock lever should be in the lock state and care should be taken to place it so the connector will not be damaged. And do not store a steering wheel pad on top of another one. (Storing the pad with its metallic surface up may lead to a serious accident if the airbag inflates for some reason.)
2. Never measure the resistance of the airbag squib.
(This may cause the airbag to deploy, which is very dangerous.)
3. Store the air-bag module where the ambient temperature remains below 93°C (200°F), without high humidity and away from electrical noise.
4. When using electric welding, first disconnect the airbag connector (red color and 2 pins) under the steering column near the MULTI-FUNCTION SWITCH connector before starting work.
SRSCM (SRS Control Module)
Install the SRS Control Module (SRSCM) with the arrow on the SRSCM facing toward the front of the vehicle.
CLOCK SPRING (in MULTI-FUNCTION SWITCH)
The steering wheel must be fitted correctly to the steering column with the clock spring at the neutral position, otherwise cable disconnection and other troubles may result. Refer to page 56A-13 of this manual concerning correct steering wheel installation.