Details On DTCs

U2145-02: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with remote tuner (RT)
Detection condition	Determination conditions	Connectivity master unit (CMU) detects communication error with remote tuner (RT).
	Preconditions	Not applicable
	Malfunction determination period	Not applicable
Fail-safe	Not applicable
Vehicle status when DTCs are output	Not applicable
Possible cause	Malfunction in wiring harness (including connector/terminal) between battery/lead-acid battery (with Mazda M Hybrid)/DC-DC converter (without Mazda M Hybrid) and remote tuner (RT) Malfunction in wiring harness (including connector/terminal) between remote tuner (RT) and body ground Connectivity master unit (CMU) stores DTCs other than U2145-02: Malfunction in wiring harness (including connector/terminal) between remote tuner (RT) and audio amplifier Malfunction in wiring harness (including connector/terminal) between remote tuner (RT) and connectivity master unit (CMU) Remote tuner (RT) malfunction Connectivity master unit (CMU) malfunction