Restraints and Safety Systems: Description and Operation

CAUTION:
Do not use a circuit tester to check SRS harness connectors unless instructed. SRS wiring harnesses (except "SEAT BELT PRE-TENSIONER" connector) can be identified by yellow harness connector (and with yellow harness protector or yellow insulation tape before the harness connectors).

Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a new one.

Keep ground portion clean.






DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using "AIR BAG" warning lamp, "SEAT BELT" warning lamp and/or CONSULT. The reading of these results is accomplished using one of two modes - "User mode" and "Diagnosis mode".

The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system malfunction through the operation of the "AIR BAG" warning lamp and/or "SEAT BELT" warning lamp. The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.


HOW TO CHANGE SELF-DIAGNOSIS MODE - WITHOUT CONSULT






From User Mode to Diagnosis Mode
Diagnosis mode activates only when a malfunction is detected, by pressing the driver's door switch at least 5 times within 7 seconds after turning the ignition "ON". SRS will not enter Diagnosis mode, if no malfunction is detected.

From Diagnosis Mode to User Mode
After a malfunction is repaired, switch the ignition "OFF" for at least 1 second, then back "ON". Diagnosis mode returns to User mode. If switching Diagnosis mode to User mode is required while malfunction is being detected, switch the ignition "OFF", then back "ON" and press the driver's door switch at least 5 times within 7 seconds.


Checking Air Bag Operation by Using "AIR BAG" Warning Lamp - User Mode






1. After turning ignition switch from "OFF" to "ON", "AIR BAG" warning lamp operates.






2. Compare "AIR BAG" warning lamp operation to the chart.

NOTE: If "AIR BAG" warning lamp operates differently from the operations shown above, refer to "AIR BAG" warning lamp operation - Diagnosis mode -, DIAGNOSTIC PROCEDURE 3 (step 4). Procedure 3

Checking Seat Belt Pre-tensioner Operation by Using "Seat Belt" Warning Lamp - User Mode






1. After turning ignition switch from "OFF" to "ON", "SEAT BELT" warning lamp operates.






2. Compare "SEAT BELT" warning lamp operation to the chart.