Your flat battery will not be caused by the SRS.
The SRS light is likely to just a low battery.
Note SRS Fault Codes 5-1, 5-2, 5-3, 5-4, 5-5, 6-1, 6-2, 6-3, 6-4, 7-1, 7-2. 7-3, 8-1, 8-2, 8-3, 8-4, 8-5 & 8-6: Internal Failure Of SRS or Supplemental Restraint System Unit.
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