DTC U2300 00: Configuration Data Not Received From Instrument Cluster: 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 U2300:00 (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSES

Description	Configuration data not received from instrument cluster
Detection condition	Start stop unit cannot receive the configuration data from the instrument cluster for 1 s or more with the ignition switched ON (engine off or on).
Fail-safe function	Secures the correct data received right before the malfunction.
Possible cause	DTCs are stored in the instrument cluster. Instrument cluster malfunction Start stop unit malfunction
System wiring diagram	Not applicable