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DTC U0131-00: Communication Error With EPS Control Module [(BCM)]: Outline

WARNING: This page is about a different car, the 2021 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0131:00 (BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error with EPS control module
Detection condition  
  • The body control module (BCM) cannot receive CAN signal from the EPS control module.
Fail-safe  
  • Sets to default signal.
Possible cause  
  • Malfunction in CAN communication line between EPS control module and body control module (BCM)
System wiring diagram Not applicable
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