AUDI: AIRBAG WARNING LIGHT ON, UPDATE FOR AIR BAG MODULE SOFTWARE. AIRBAG WARNING LIGHT ILLUMINATES DUE TO SPORADIC FAULT ENTRY. AIRBAG WARNING LIGHT ILLUMINATES DUE TO SPORADIC FAULT ENTRY. DTCS SPORADICALLY COULD BE PRESENT IN AIRBAG CONTROL MODULE: DTC 01211, 01212, 01213, 01638 AND 01639. THE REAR SEATBELT PRETENSIONER IGNITERS WILL CONTINUE TO FUNCTION AS DESIGNED IF DTCS ARE SET AS SPORADIC FAULTS. *PE