Hyundai Tiburon (2003 year). Manual — part 157

The SRS (Airbag) consists of : a driver airbag module located in the center of the steering wheel, which contains
a folded cushion and an inflator unit ; a passenger airbag module located in the passenger side crash pad which
contains a folded cushion together with an inflator unit ; side airbag modules located in the driver and passenger
seat which contain folded cushions and inflator units; SRSCM located on the floor center console core which
monitors the system,; an accelerometer which senses vehicle deceleration,; a spring interconnection (clock
spring) located within the steering column; system wiring and wiring connectors; and a knee bolster located
under the steering column. The impact sensing function of the SRSCM is carried out by the electronic
accelerometer that continuously measures the vehicle's acceleration and delivers a corresponding signal through
an amplifying and filtering circuit to the microprocessor. Deployment of the airbag is designed to occur in frontal
or near-frontal side impacts of moderate to severe force.

Further, if a mistake is made in servicing the airbag system, it is possible that the airbag may fail to operate when
required.

The SRS airbag system has sophisticated electrical and electronic components. Therefore the airbag operating
components should be handled very carefully.
The SRSCM will deploy the airbag modules by sensing the frontal impact sensed by the sensor built in to the
SRSCM.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > General Information > General Information,
TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > General Information > General Information

GENERAL

CUSTOMER CAUTIONS

1. Be sure to proceed with airbag related service only after approx. 30 seconds or longer from the time the

ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the
battery. The airbag system is equipped with a back-up power source to assure the deployment of airbags
when the battery cable is disconneted during an accident. The back-uppower is available for approx. 150ms.

2. When the negative(-) terminal cable is disconnected from the battery, the clock and audio system's memory

will be wiped out. So before starting work, make a record of the contents of the audio system's memory. When
the work is finished, reset the audio system and adjust the clock.

3. Symptoms of malfunction of the airbag system are difficult to detect, so the diagnostic codes become the most

important source of information when troubleshooting.

4. When troubleshooting the airbag system, always inspect the diagnostic codes before disconnecting the

battery.

5. Never use airbag parts from another vehicle. When replacing parts, replace them with new parts.

6. Never attempt to disassemble and repair the airbag modules (DAB, PAB, SAB, BPT), clock spring and wiring

in order to reuse them.

7. If any component of SRS has been dropped, or if there are cracks, dents or other defects in the case, bracket

or connector, replace them with new ones.

8. After work on the airbag system is completed, perform the SRS SRI check. The airbag indicator lamp can be

triggered by faults in other circuit in some cases. Therefore if the airbag indicator lamp goes on, be sure to
erase the DTC codes using Hi-scan just after repairing or replacing the troubled parts,including the fuse.

9. Especially when carring out body welding, never fail to disconnect the battery's negative (-) terminal.

SRSCM

1. DC/DC convertor : The DC/DC converter in the power supply includes a step-up and a step-down converter,

which provides the firing voltage for four firing circuits and the internal operating voltage. If the internal
operatingvoltage falls below a defined threshold, a reset is executed.

2. Arming sensor/safing sensor : The arming/safing sensor built in to the airbag firing circuit has the function of

arming the airbag circuit under all required deployment conditions and maintaining the airbag firing circuits
unarmed under normal driving conditions. The safing sensor is a dual-contact electromechanical switch that
closes if it experiences a deceleration exceedinga specified threshold.

3. Back-up power : The SRSCM reserves an energy reserve to provide deployment energy for a short period

when the vehicle voltage is low or if lost in avehicle frontal crash.

4. Malfunction detection : The SRSCM continuously monitors SRS operating status while the ignition key is

turned on and detects possible malfunctions in the system. The malfunction can be displayed in the form of a
diagnostictrouble code using the Hi-Scan Pro.

5. MIL (Malfunction Indication Lamp) notification : If any fault is detected, the SRSCM sends a signal to the

indicator lamp on the instrument cluster towarn the vehicle driver.
The MIL indicator is the key item in notifying the driver of SRS faults. It verifies lamp and SRSCM operation by
flashing 6 times when the ignitionswitch is first turned on.

6. Malfunction recording : Once a fault occurs in the system, the SRSCM records the fault in memory in the form

of a DTC, which can only be erasedby the Hi-Scan Pro.

7. Data link connector : SRSCM memory stored is linked through this connector located underneath the driver

side crash pad to an external output devicesuch as the Hi-Scan Pro.

8. What if only BPT's deploy

9. Crash output

The crash output is used to unlock the doors in case of a crash. The crash output is : 0-200

λ

A in OFF mode

and 200mA in ON mode. During theunlock command, the switch is closed for 200 mS.

SRSCM (SUPPLEMENTAL RESTRAINTS SYSTEM CONTROL MODULE)

1. When removing the airbag module or handling a new airbag 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 locked state and care
should be taken to place it so the connecter will not be damaged. 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 should
inflate accidentally.)

2. Never measure the resistance of the airbag squib. (This may cause the airbag to deploy, which is very

dangerous.)

3. Store the airbag module where the ambient temperature remains below 93°C (200°F), without high humid ity

and away from electrical noise.

4. During electric welding, disconnect the airbag under the steering column near the MULTI-FUNCTION

SWITCH connector before starting work.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > General Information > Special Service Tools,
TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > General Information > Special Service Tools

SPECIAL SERVICE TOOL

Tool (Number and name)

Illustration

Use

0957A-34100A
Deployment tool

Airbag deployment tool
PAB, SAB : 0957A-38100
DAB, BPT : 0957A-38500

0957A-38200
Dummy

Simulator to check the
resistance of each wiring
harness
Dummy adapter
PAS, SAB : 0957A-38300
DAB, BPT : 0957A-1C000

0957A-38100
Deployment adapter

Use with deployment tool.

0957A-38500
Deployment adapter

Use with deployment tool.

0957A-38300
Dummy adapter

Use with dummy.

0957A-1C000
Dummy adapter

Use with dummy.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > Supplemental Restraint System Control Module (SRnodeM)
> Schematic Diagrams, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > Supplemental Restraint System
Control Module (SRnodeM) > Schematic Diagrams

SRSCM CONNECTOR DAB+PAB+SAB+BPT

PIN NO.

Function

Input/output

1

Driver belt pretensioner, High

Output

2

Driver belt pretensioner, Low

Output

3

Passenger belt pretensioner, High

Output

4

passenger belt pretensioner, Low

Output

5

Battery supply

Input

6

GND

Input

7

Warning lamp

Output

8

Driver seat belt buckle switch, High

Input

9

K-diagnostic line

Input/output

10

Driver airbag, High

Output

11

Driver airbag, Low

Output

12

Passenger seat belt buckle switch, High

Input

13

Passenger airbag, High

Output

14

Passenger airbag, Low

Output

15

Not used

-

16

Driver side airbag, High

Output

17

Driver side airbag, Low

Output

18

Passenger side airbag, Low

Output

19

Passenger side airbag, High

Output

20

Driver satellite sensor, High

Input

21

Passenger satellite sensor, High

Input

22

Not used

-

23

Not used

-

24

Not used

-

25

Not used

-

26 ~ 27

Shorting bar

-

28 ~ 29

Shorting bar

-

30

Battery voltage output for seat buckle switch

Output

31 ~ 32

Shorting bar

-

33

Driver seat belt buckle switch, Low

Input

34

Crash output

Output

35 ~ 36

Shorting bar

-

37

Passenger seat belt buckle switch, Low

Input