DTC U0156-41 Or U0156-82: Communication Error With Instrument Cluster (Airbag) (Us): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0156:41 OR U0156:82 (AIRBAG) (US) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	U0156:41: Communication error with instrument cluster (check sum error) U0156:82: Communication error with instrument cluster (counter error)
Detection condition	U0156:41 The SAS control module detects that a check sum error received from the instrument cluster. U0156:82 The SAS control module detects that a counter value error received from the instrument cluster.
Fail-safe	Not applicable
Possible cause	Instrument cluster malfunction Body control module (BCM) malfunction SAS control module malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable