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DTC U3000 49: Front Body Control Module (FBCM) Internal Malfunction: Notes

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC U3000:49 (FRONT BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSES

Description  Front body control module (FBCM) internal malfunction 
Detection condition 
  • Front body control module (FBCM) detects the internal malfunction.
Fail-safe function  Not applicable
Possible cause 
  • Front body control module (FBCM) malfunction
System wiring diagram  Not applicable