DTC U2300-56: Configuration Error (Ineffective/Non-Interchangeable Data Read) (Telematics Communication Unit): 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 U2300:56 (TELEMATICS COMMUNICATION UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Configuration error (Ineffective/non-interchangeable data read)
Detection condition	The telematics communication unit received invalid configuration data from body control module (BCM).
Fail-safe	Not applicable
Possible cause	DTCs are stored in the body control module (BCM). Inappropriate telematics communication unit replacement procedure Body control module (BCM) configuration data write error Malfunction in CAN bus communication line Telematics communication unit malfunction Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable