Kia Carens. Manual — part 193

2001 > 1.8L DOHC >

Description and operation

Air Bag-Supplemental restraint system

Air Bag-Supplemental Restrain System (SRS) is designed to supplement driver seat belts during front end
collisions, reducing risk of serious injury or death.
Two collision-sensitive sensors are located in Air bag Diagnostic Unit (ADU). These two sensors (Safing sensor
and G-sensor) are electrically connected in series with air bag and battery.
In case of the frontal crash, the G-sensor gets the collision deceleration. The collision deceleration information
is converted in to digital data and compares them with designed data to decide whether it has to send a signal
to deploy the air bag module or not. If the calculation result by the CPU is correspond to the designed data, it
decides to send a deployment signal.
At the same moment, the safing sensor, which is linked linearly on deployment circuit, checks whether the
deceleration is happened by actual physical collision, or by other electronic waves and mal effect. So, only
when both the signal of deployment from the CPU and closing of safing sensor switch come together, the air
bag can be deployed.
Driver is protected by a steering wheel mounted air bag. Air bag-Supplemental Restraint System consists of Air
Bag Module, Air Bag Diagnostic Unit, and wire harness & clock-spring assembly.

Service warnings(Personal safety)

Failure to follow all warnings, cautions, notices and procedures could result in personal injury or death.

Power supply deactivation

Air bag-SRS diagnostic unit contains a backup power supply. Before disconnecting air bag-SRS components,
turn ignition switch to LOCK, disconnect battery (negative terminal first), and wait 10 minutes for backup power
supply to discharge.
Failure to follow this procedure could cause air bag modules to deploy during service procedures, which may
cause serious injury.

Safety equipment

• Always wear safety glasses when handling air bag modules.
• Always wear rubber gloves when handling deployed or damaged air bag modules.

Wiring and electrical components

Never service wiring or electrical components when any air bag is connected. When a procedure directs use of
a multimeter to probe pins of a connector, insert prbes into back of connector where possible.
If you must probes front face (terminal side), be certain to use a probe whose tip will not damage terminals
when it is inserted.

Component disassembly

Do not disassembly any air bag-SRS components.
Disassembly can render system inoperative, which may result in serious injury or death in event of an accident.
Never attempt to disassemble or repair air bag modules. Any attempt to adapt, re-use, or install an air bag
module or its components in another vehicle may result in serious injury or death to vehicle occupants in event
of an accident.

Air bag diagnostic unit (ADU)

Do not connect ADU connector unless ADU is securely installed. Shock of installation or pinching wiring
harness between module and its mounting points can cause air bags to deploy, which may cause serious
injury.

Air bag module inspection

Do not probe or inspect air bag modules or any of their connectors with an ohmmeter. Inspecting air bag
module with an ohmmeter, which supplies current, can cause air bags to deploy, resulting in serious injury.

Air bag module connector

Do not cut or otherwise remove the air bag module connector. Connector contains a safety shunt which, if
disabled, couldcause an unintended deployment. This may cause severs personal injury or death.

Air bag module handling

A live (undeployed) air bag may accidently deploy during handling. When carrying a live air bag module, point
plastic trim cover away from your body to lessen chance of injury in case of accidental deployment.
Never carry module by its wiring or connectors.

Securing modules

Always place live air bag modules face up (plastic trim side up) to lessen motion of the module in case of
accidental deployment. Keep the area clear of tools and other debris. Never place items on or above the trim
cover of a live air bag module. In case of accidental deployment, such items may cause serious injury or death.

Live air bag module storage

Live air bag modules contain solid flammable material.
Store in a cool, dry, secure area. Do not expose them to open flame or temperatures in excess of 300° F.
Do not cut, drill, braze, solder or weld an air bag module or any of its components. Never expose the module or
any of its components to electricity. Failure to comply with this warning can lessen the integrity of the module,
causing fires,chemical exposure, or unintended deployment, which may cause serious injury or death.

Damaged live air bag module storage

Damaged live air bag modules should be stored away from all acids, halogens, heavy metals and metal salts.
Damaged units may produce hydrozoic acid if exposed to liquids. If an undeployed air bag module or inflator is
ruptured or tampered with, refer to the material Safety Data Sheet (MSDS) for the particular module for
important information concerning the constiruents of undeployed modules. Exposure to high concentrations of
propellant mixture can cause headaches, nausea, blurred vision, faintness, cyanosis, lowering of blood
pressure or tachycardia. Failure to comply with this warning can result in fire, noxious fumes, severe personal
injury or death.

Out-of-vehicle deployment

Out-of-vehicle deployment should be performed in an open area, away from other personnel. verify that there is
no loose debris or flammable liquid near the air bag assembly. All personnel should be behind protective cover
(i.e., wall, vehicle)to shield their bodies from potential projectiles. Do not attempt to deploy a ruptured air bag
module. Failure to comply with this warning may result in severe injury or death. Refer to Air Bag Deployment
and Disposal.

Danger of fire

Air bag module components are very hot after deployment. Units should be deployed outdoors or in open areas
to prevent fires. Allow components at least twenty minutes to thoroughly cool. Cooling modules should be
continuously monitored to ensure hot components do not create fires with spilled liquids or other debris. Failure
to allow the unit to cool could result in burns, fires or personal injury.

Storage/Transportation/Disposal/Recycling

Storage, transportation. disposal and recycling of air bag module and components must be performed in
accordance with each region regulations.

2001 > 1.8L DOHC >

Air bag system

1. Turn ignition switch to ON.

2. The air bag indicator should illuminates. If it does not, see Air bag indicator Service.

3. The Air Bag Indicator should go out within 4~6 seconds. If it stays out, system is OK.

4. If Air Bag Indicator remains illuminated, there is a problem in Air Bag-Supplemental Restraint System

(SRS).

5. Turn ignition switch to LOCK.

6. Locate Data Link Connector (DLC) in engine compartment and install Hi- Scan Pro tool.

7. Turn ignition switch to ON and record any Diagnostic Trouble Codes displayed by Hi-Scan Pro Tool.

8. Refer to Air Bag Diagnostic Troubles Codes Chart, for fault description and actions.

SERVICING AIR BAG SYSTEM IMPROPERLY MAY CAUSE IT TO DEPLOY, WHICH CAUSE
SERIOUS INJURY OR DEATH.MUST READ AND FOLLOW ALL SERVICE WARNNINGS, DEFORE
SERVICING.

Never service wiring or electrical components when air bag is connected.

General procedure(Before servicing)

1. Turn the ignition switch to LOCK.

2. Disconnect the battery.

3. Wait 10 minutes for the backup power to discharge completely.

After servicing

1. Reconnct the battery.

2. Turn the ignition switch to ON.

3. Verify that air bag indicator illuminates for 4-6 seconds and then goes off.

Air bag indicator service

Step

Inspection

Action

1

Does indicator illuminate for a period of 4-6
seconds when ignition switch is turned to
ON, and then go off?

Yes

Go to step 8.

No

Go to next step.

2

Use fuse extraction tool in passenger
compartment fuse box to extract meter
fuse. Is it open?

Yes

Replace it with another 10A fuse and
check for short circuits in its associated
wiring harnesses. Repair as necessary and
then go to step 8.

No

Go to next step.

3

Follow general procedures(see above).
Remove instrument cluster and check
connector C-01. Are pins secure and is
connector continuity exist?

Yes

Go to next step.

No

Repair malfunction and then reinstall
cluster.
Go to step 8.

4

Perform general procedures(see above).
Remove instrument cluster and check
connector C-01. Are pins secure and is
connector locked in placed?

Yes

Lamp is good. Go to next step.

No

Lamp is burnt. Replace it, reinstall
instrument cluster and go to step 8.

5

Connect battery. Verify battery
voltage(approximately 12V). Turn the
ignition switch to ON. Is there
approximately 12V at pin 1L of connector
C-01?

Yes

Go to next step.

No

Check harness for opens or a short to
ground between meter fuse and instrument
cluster.
Repair as necessary. Go to step 8.

6

Connect a voltmeter between pin 1L and
pin 1l of C-01. Is 12V present for 4-6
seconds when the ignition switch is turned
to ON?

Yes

Go to step 8.

No

Check harness for an open or a short to
ground between instrument cluster and Air
Bag Diagnostic Unit(ADU). Repair as
necessary. Go to step 7.

7

Does indicator illuminate for a period of 4-6
seconds when ignition switch is turned to
ON?

Yes

Go to step 8.

No

Replace ADU. Go to next step. See Air
Bag Diagnostic Unit(ADU).

8

Does indicator illuminate constantly after
initial 4-6 second period?

Yes

Refer to Diagnostic Trouble Code
Troubleshooting.

No

Air Bag Indicator is OK?