DTC U0140-00: Communication Error With Body Control Module (BCM) [MAZDA Emergency Assistance Control Module]: Outline

DTC U0140:00 (MAZDA EMERGENCY ASSISTANCE CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with body control module (BCM)
Detection condition	The Mazda EMERGENCY ASSISTANCE control module cannot receive a CAN signal from the body control module (BCM).
Fail-safe	Not applicable
Possible cause	Malfunction in CAN communication line between the body control module (BCM) and Mazda EMERGENCY ASSISTANCE control module Mazda EMERGENCY ASSISTANCE control module malfunction Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable