Copyright by Hyundai Motor Company. All rights reserved. SRS

2 SRS Air Bag De-powered Airbag System (General/EUR) Front Impact Sensor(2) FR Side Impact Sensor(2) Driver A/BAG Passenger Airbag FRT Side A/BAG(2) Seat Belt Pretensioner(2) Curtain A/BAG(2) A/Bag Control Unit DABPABPTSABCABWCSSTPSBSSBR Crash Out PAD Lamp PAD S/W FISSIS Gen EUR PASSENGER AIIRBAG OFF

3 SRS Air Bag Inputs and outputs ACU Driver airbag Passenger airbag Side airbags Beltpretensioner Airbag warning lamp Crash output to BCM CAN communication with scanner Battery (+) Front impact sensor Side impact sensor Passenger airbag Deactivation switch ACU Passenger airbag deactivation lamp Front impact sensor Side impact sensor

4 SRS Air Bag Airbag Thresholds Driver Airbag Unbuckled/Buckled PTAirbag Crash Severity No Fire CrashNo Fire Must Fire CrashFire Passenger Airbag Unbuckled/Buckled PAB On-Off Switch On (Enabled)PAB On-Off Switch Off (Disabled) PTAirbagPTAirbag No Fire CrashNo Fire Must Fire CrashFire No Fire Driver Front Airbag Passenger Front Airbag

5 SRS Air Bag Airbag Thresholds Driver Seat Thorax and side airbag PTSide airbag Crash Severity No Fire side crashNo Fire Must Fire side crashNo FireFire Passenger SeatPAB On-Off Switch On (Enabled)PAB On-Off Switch Off (Disabled) Thorax and head side airbagPTSide airbagPTSide airbag Crash Severity No Fire side crashNo Fire Must Fire side crashNo FireFireNo FireFire Driver Side Airbag (DSAB) Passenger Side Airbag (PSAB)

6 SRS Air Bag ACU (Airbag Control Unit) The primary functions Crash Detection Activation of the front airbags, Side airbags and belt pretensioners Monitoring of the airbag restrain system Indicate system readiness and faults to the drive by means of a fault warning lamp Facilitate servicing capability via a serial diagnostic communication interface

7 SRS Air Bag DAB (Driver Air Bag) Resistance: All-fire current: 1.2A for 3ms. No-fire current: single pulse of 0.4A for 10 sec Cyclic test current: 100mA for continuous

8 SRS Air Bag PAB (Passenger Air Bag) Resistance: All-fire current: 1.2A for 3ms. No-fire current: single pulse of 0.4A for 10 sec Cyclic test current: 100mA for continuous

9 SRS Air Bag FSAB (Front Side Air Bag) Resistance: All-fire current: 1.2A for 3ms. No-fire current: single pulse of 0.4A for 10 sec Cyclic test current: 100mA for continuous

10 SRS Air Bag CAB (Curtain Air Bag) Resistance: All-fire current: 1.2A for 3ms. No-fire current: single pulse of 0.3A for 10 sec Cyclic test current: 25mA for 400ms

11 SRS Air Bag SPT (Seatbelt Pre Tensioner) Resistance: All-fire current: 1.2A for 3ms. No-fire current: single pulse of 0.4A for 10 sec Cyclic test current: 100mA for continuous

12 SRS Air Bag PAD (Passenger Airbag Deactivation) Switch – EUR Only

13 SRS Air Bag FIS (Front Impact Sensor) & SIS (Side Impact Sensor) NameHMC NumberSensorFigures Side Impact Sensor X g, x-axis Front Impact Sensor J g, x-axis

14 SRS Air Bag Airbag (SRS) Warning Lamp Operations (Active fault or historical fault counter is greater or equal to 10) (Normal or historical fault counter is less than 10)

15 SRS Air Bag PAD Indicator Operations ( PAD Lamp operation during Phase-up )

16 SRS Air Bag Crash Output The required command mode implementation is high/low voltage level. When the fire decision is made by ACU, crash output stays low voltage during 200ms like below. (Crash Output Signal)

17 SRS Air Bag Crashing Information Diagnostic Trouble Codes Identification Check Front Crash Information Side Crash Information Driver Crash Information Passenger Crash Information Passenger Airbag Realtime Info Internal faults can´t be erased Diagnostic Tree

18 SRS Air Bag Inspection chart for trouble symptom Inspection chart for DTCIntermittent malfunction No DTC or cant communicate with Hi-Scan ReoccursDoes not reoccur DTC displayed No DTC DTC displayed No DTC Gathering information from customer Verify complaint Check DTC Record DTC then try to erase them Recheck trouble symptom Check displayed DTC System Checking Flow