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AV-280 < DTC/CIRCUIT DIAGNOSIS > [NAVIGATION WITHOUT BOSE] MICROPHONE SIGNAL CIRCUIT Is the inspection result normal? YES >> Replace AV control unit. Refer to AV-298, "Removal and Installation" . NO >> Replace microphone. Refer to AV-311, "Removal and Installation" AV control unit connector M104 Condition Reference value (+) ( −) Terminal Terminal 43 41 Speak into microphone. SKIB3609E |