Details On DTCs

B1A32-11: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Emergency call speaker/microphone signal circuit malfunction
Detection condition	Determination conditions	The audio amplifier detects a short to ground in the emergency call speaker/microphone signal circuit.
	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 emergency call speaker/microphone and audio amplifier Emergency call speaker/microphone malfunction Audio amplifier malfunction Connectivity master unit (CMU) malfunction