The airbag indicator flashes on a Hyundai Sonata year 2016 after replacing the airbag module. Launch X431 V 8 inch scanner gives a ABS code and 2 SRS fault codes.
Hyundai Sonata ACU (airbag control unit) coding:
Airbag coding code is required during coding progress. ACU/SRSCM coding code: combined of letters and numbers in 4 bytes. You can get the srs coding code from your vehicle manufacturer or online pincode calculator, i.e superpincodes.com by entering car make, unit type and VIN
In Launch X431 diagnostic system, choose Hyundai->16pin->press Airbag fault code (Event #1)->Special Function->ACU/SRSCM Variant Coding
This function is used to after the setting of ECU according to its specification when an ACU/SRSCM is replaced.
Turn ignition to ON position
Press OK button to continue.
Check for ACU/SRSCM variant coding code of the same VIN number first from vehicle manufacturer
Manually enter 4-digit ACU coding code and confirm
Launch X431 Variant Coding is completed.
After the Variant Coding process, please make sure that the ACU/SRSCM information corresponds with the rear car information.
Check the fault code
Airbag fault code 1 was successfully reset
Airbag fault code 2 was cleared as well
Reset ABS code okay
No more fault code exists.