Vehicle Mode:Nissan Teana (Altima)
Year: 2019 May
Module: Airbag module
Number: 98820-6CT0A
Chip: SAK-TC222S
Device to repair: CG100 Prog III
Symptom:
Airbag indicator turns on with airbag fault code B1421 detected
Procedure:
Remove airbag module under the cup groove
Disassemble airbag unit
Locate chip TC222
Open CG100 software
Choose Programmer function->Infineon->TC222
Check wiring diagram
Connect CG100 with airbag module thru BDM4 adapter follow the wiring diagram
Read DFLASH data and save
Send original DFLASH data to CG engineer. They will send you back the fixed data.
Write new data back to airbag module
Write data success
Disconnect CG100 and reinstall airbag module to car.
Scan fault code again. No fault code exists. Airbag indicator goes off.
