Hyundai Elantra (CN7): Restraint / Description and operation

Hyundai Elantra (CN7) 2021-2026 Service Manual / Restraint / Description and operation

Warning Lamp Activation
The airbag system control module detects the presence or absence of an airbag system when power is supplied and turns on the airbag warning lamp.
1.
When the airbag system is normal
When the airbag system is normal, the airbag warning light turns on for 6 seconds and then goes out.

2.
When the airbag system is broken
If there is something wrong with the airbag system, it lights up for 6 seconds, then turns off for 1 second and then lights up continuously.

3.
When turning the ignition switch ON during variant coding (EOL) mode, the airbag warning lamp is turned on and blinks at intervals of 1 second till the coding is completed.
In case the variant coding is normally completed, the airbag warning lamp is turned on for 6 seconds, and then turned off. Otherwise the airbag warning lamp continuously blinks at intervals of 1 second.
(1)
In case the variant coding is normally completed

(2)
In case the variant coding is not completed.

When there is active fault in airbag system or SRSCM internal fault, the variant coding (EOL) cannot be completed. In this case, perform the variant coding (EOL) procedure again after troubleshooting with the diagnostic tool.
In the following cases, the airbag warning light continues to light.
–
Current airbag system failure or internal airbag system control module failure
–
If there is a collision fault code
–
When communicating with the airbag system control module using a diagnostic tool
In the event of a malfunction in which the airbag system control module fails to operate, the airbag warning lamp operation cannot be properly controlled. In this case, the airbag warning lamp operates normally through a circuit that operates independently of the airbag system control module.
–
Loss of battery supply to the SRSCM : airbag warning lamp turned on continuously.
–
Loss of internal operating voltage : airbag warning lamp turned on continuously.
–
Loss of work airbag system control module : airbag warning lamp turned on continuously.
–
When the airbag system control module is not connected

    PrecautionsGeneral PrecautionsPlease read the following precautions carefully before performing the airbag system service. Observe the instructions described in this manual, or the airbags could accidentally deploy and cause damage or injuries.

    Tightening Torques Item N.m kgf.m lb-ft Passenger Air Bag 3.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Description and operation

    DescriptionSystem OverviewThe System offers the following features:– Human / machine interface through a 1-stage button, for terminal switching and engine start.– Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Components and components location

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