Hyundai Tiburon (2003 year). Manual — part 158

38 ~ 39

Shorting bar

-

40

Not used

-

41 ~ 42

Shorting bar

-

43 ~ 44

Shorting bar

-

45

Driver satellite sensor, Low

Input

46

Passenger satellite sensor, Low

Input

47

Not used

-

48

Not used

-

49

Not used

-

50

Not used

-

DIAGNOSTIC TROUBLESHOOTING FLOW

The clock spring (coil spring) consists of two current carrying coils. It is attached between the steering column and the
steering wheel. It allows rotation of the steering wheel while maintaining continuous contact of the deployment loop through
the inflator module.

The SRSCM is supported with the side airbag function by two satellites, which act as intelligent acceleration sensors and
as such back up the central airbag controller. Both the satellites continuously report the system statuson the left and right-
hand sides of the vehicle to the SRSCM.

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > Supplemental Restraint System Control Module (SRnodeM)
> Description and Operation, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Restraint > Supplemental Restraint
System Control Module (SRnodeM) > Description and Operation

SRS HARNESS

SRSCM INDEPENDENT LAMP ACTIVATION

1. Loss of ignition voltage supply to the SRSCM : lamp turned on continuously.

2. Loss of internal operating voltage : lamp turned on continuously.

3. SRSCM not connected : lamp turned on through shorting bar in wiring harness connector.

MIL OPERATING METHOD

CLOCK SPRING

SATELLITE SENSOR

When the ignition is ON, never cause a sudden shock around the installation area of the satellite sensor by a hammer,

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.

etc. Otherwise it could cause the airbag system to unexpectedly deploy during servicing.

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 operating voltage 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 electro mechanical switch that closes if it experiences a
deceleration exceeding a 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 a vehicle frontal crash.

4. 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 a vehicle frontal crash.

5. 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 diagnostic trouble code
using the Hi-Scan Pro.

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

on the instrument cluster to warn 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 ignition switch is first turned on.

7. 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 erased by the Hi-Scan Pro.

8. Data link connector : SRSCM memory stored is linked through this connector located under neath the driver side crash

pad to an external output device such as the Hi-Scan Pro.

9. What if only BPT's deploy.

10. Crash output

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

µ

A in OFF mode and

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

DIAGNOSIS WITH SCAN TOOL

CHECK PROCEDURES

1. Connect the Hi-Scan Pro DLC to the vehicle's data link connector located underneath the dash panel.

2. Turn the ignition key to the "ON" position and turn the Hi-Scan Pro ON.

3. Perform the SRS diagnosis according to the vehicle model configuration.

4. If a fault code is assured, then replace the component. Never attempt to repair the component.

5. If the Hi-Scan Pro finds that a component of the system is faulty, there is a possibility that the fault is not in the

component, but in SRS wiringor connector.

SPECIFICATION

DAB

PAB, SAB, BPT

AIRBAG SQUIB RESISTANCE LIMITS

R

≤

1.06

Ω

Resistance too low

Fault definitely detected

1.80

Ω

≤

R

≤

3.40

Ω

Resistance whithin tolerance

Definitely no fault detected

R

≥

6.70

Ω

Resistance too high

Fault definitely detected

1.06

Ω

< R < 1.80

Ω

3.40

Ω

< R < 6.70

Ω

Tolerance band

Fault may or may not be detected

R

≤

0.4

Ω

Resistance too low

Fault definitely detected

1.6

Ω

≤

R

≤

2.8

Ω

Resistance whithin tolerance

Definitely no fault detected

R

≥

5.4

Ω

Resistance too high

Fault definitely detected

0.4

Ω

< R < 1.6

Ω

Tolerance band

Fault may or may not be detected