Kia Optima: Restraint

DC/DC converter: DC/DC converter in power supply unit includes up/down transformer converter, and provides ignition voltage to 2 front airbag ignition circuits and the internal operation voltage to the SRSCM. If the internal operation voltage is below critical value setting, it will perform resetting.

Back up power supply: SRSCM has separate back up power supply, that will supply deployment energy instantly in low voltage condition or upon power failure by front crash.

Self diagnosis: SRSCM will constantly monitor current SRS operation status and detect system failure while vehicle power supply is on. System failure may be checked with trouble codes using KDS.

Airbag warning lamp on: Upon detecting error, the module will transmit signal to SRSCM indicator lamp located in cluster. MIL lamp will inform the driver of SRS error. Upon Ignition on, SRS lamp will turn on for about six seconds.

Trouble code registration: Upon error occurrence in system, SRSCM will store DTC corresponding to the error. DTC can be cleared only by KDS. However, if an internal fault code is logged or if a crash is recorded, the fault code(s) cannot be cleared.

Self diagnostic connector: Data stored in SRSCM memory will be sent to KDS or other external output devices through connector located below the driver side crash pad.

Once airbag is deployed, the SRSCM must be replaced. It should never be reused.

Side airbag deployment will be determined by SRSCM that detects satellite sensor impact signal upon a side crash.

Check for the normal operation of SRSCM after repair procedure.

Except when performing electrical inspections, always turn the ignition switch OFF and disconnect the negative cable from the battery, and wait at least three minutes before beginning work.

The contents in the memory are not erased even if the ignition switch is turned OFF or the battery cables are disconnected from the battery.

Use the replacement parts which are manufactured to the same standards as the original parts and quality.

Do not install used SRS parts from another vehicle. Use only new parts when making SRS repairs.

Carefully inspect any SRS part before you install it. Do not install any part that shows signs of being dropped or improperly handled, such as dents, cracks or deformation.

Before removing any of the SRSCM parts (including the disconnection of the connectors), always disconnect the SRSCM connector.

Store the removed airbag with the pad surface up.

Keep free from any oil, grease, detergent, or water to prevent damage to the airbag assembly.

Store the removed airbag on secure, flat surface away from any high heat source (exceeding 85 C/185 F).

Never perform electrical inspections to the airbags, such as measuring resistance.

Do not position yourself in front of the airbag assembly during removal, inspection, or replacement.

Refer to the scrapping procedures for disposal of the damaged airbag.

Be careful not to bump or impact the SRS unit or the side impact sensors or front impact sensors whenever the ignition switch is ON, wait at least three minutes after the ignition switch is turned OFF before begin work.

During installation or replacement, be careful not to bump (by impact wrench, hammer, etc.) the area around the SRS unit and the side impact sensor and the front impact sensors. The airbags could accidentally deploy and cause damage or injury.

Replace the front airbag module, SRSCM, FIS when deploying the front airbag. Replace the airbag wiring when the airbag wiring get damaged. Replace the side airbag module, the curtain airbag module, SRSCM, SIS when deploying the side airbag. Replace the airbag when the airbag wiring get damaged.

After a collision in which the airbags or the side air bags did not deploy, inspect for any damage or any deformation on the SRS unit and the side impact sensors. If there is any damage, replace the SRS unit, the front impact sensor and/or the side impact sensors.

Do not disassemble the SRS unit, the front impact sensor or the side impact sensors.

Turn the ignition switch OFF, disconnect the battery negative cable and wait at least three minutes before beginning installation or replacement of the SRS unit.

Be sure the SRS unit, the front impact sensor and side impact sensors are installed securely with the mounting bolts.

Do not spill water or oil on the SRS unit, or the front impact sensor or the side impact sensors and keep them away from dust.

Store the SRS unit, the front impact sensor and the side impact sensors in a cool (15 ~ 25 C/ 59 ~ 77 F) and dry (30 ~ 80% relative humidity, no moisture) area.

Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage in SRS wiring, replace the harness.

Be sure to install the harness wires so that they are not pinched, or interfere with other parts.

Make sure all SRS ground locations are clean, and grounds are securely fastened for optimum metal-to-metal contact. Poor grounding can cause intermittent problems that are difficult to diagnose.

When using electrical test equipment, insert the probe of the tester into the wire side of the connector.

Do not insert the probe of the tester into the terminal side of the connector, and do not tamper with the connector.

Use a u-shaped probe. Do not insert the probe forcibly.

Use specified service connectors for troubleshooting.

Using improper tools could cause an error in inspection due to poor metal contact.

When disposing a vehicle that is equipped with an airbag system and other restraint devices such as seatbelt pretensioners, airbags must first be deployed.

Airbag deployment must be performed by an experienced technician.

Airbags that have been deployed cannot be reused and must not be mounted to any other vehicles.

Turn the ignition switch OFF and disconnect the negative battery terminal.

After disconnecting the cables, wait at least 30 seconds.

Confirm that each airbag module is securely mounted.

Refer to the following to prepare for the deployment of the airbag system:

The mechanic shall be located at least 7 meters away from the vehicle.

Connect the external battery after connecting the deployment tool (0957A-34100A) from the deployment adaptor.

Activate the switch of the airbag deployment tool to deploy the airbag system.

(2)

Press and hold READY (2) until the READY (2) lamp illuminate. Then, press DEPLOY (3) to deploy the system. The airbag system generates an explosion-like sound when deployed. Make sure to choose a safe place to avoid any disturbance the procedure may cause. Airbag deployment can be confirmed by audio (from the intense noise) and visually, as airbags instantly inflate and then gradually deflate.

Place deployed airbags in a sturdy plastic bag, securely seal the bag, and dispose of the bag.

• Allow at least 30 minutes for cooling before handling the airbag system as it generates extreme heat upon deployment. • Wash your hands thoroughly with soap and water after disposal.

Lay the rope (A) on the floor to form a cross and place the wheeled tire (B) over it.

Install the deployment adaptor (0K57A-3U100A) from airbag module/pretensioner.

Fix the airbag module/pretensioner (A) from wheel.

[Airbag Module]

The deployed side of the airbag must face up. The airbag may spring up and cause a serious physical damage to the operator if the deployed side is facing down.

[Pretensioner]

Install the anchor pretensioner with the end of the piston tube facing the floor.

Place three waste tires (A) first, then place wheeled tire (B) on top of the pile.

Secure the tire with the ratchet strap (C).

Connect to the battery. Connect the airbag deployment tool (0957A-34100A) to the deployment adapter (0K57A-3U100A).

When the POWER ON (A) is illuminated on the airbag deployment tool, press READY (B), and then DEPLOY (C) to deploy the airbag.

The airbag system generates an explosion-like sound when deployed. Make sure to choose a safe place to avoid any disturbance the procedure may cause.

Airbag deployment can be confirmed by audio (from the intense noise) and visually, as airbags instantly inflate and then gradually deflate.

Place deployed airbags in a sturdy plastic bag, securely seal the bag, and dispose of the bag.

• Allow at least 30 minutes for cooling before handling the airbag system as it generates extreme heat upon deployment. • Wash your hands thoroughly with soap and water after disposal.