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AV-216 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] SOUND SIGNAL CIRCUIT SOUND SIGNAL CIRCUIT SATELLITE RADIO TUNER SATELLITE RADIO TUNER : Description INFOID:0000000001450748 Left and right channel audio signals are supplied from the satellite radio tuner to the AV control unit through SATELLITE RADIO TUNER : Diagnosis Procedure INFOID:0000000001450749 LEFT CHANNEL 1. CHECK HARNESS 1. Turn ignition switch OFF. 2. Disconnect satellite radio tuner (factory installed) connector M41 3. Check continuity between satellite radio tuner (factory installed) 4. Check continuity between satellite radio tuner (factory installed) connector M41 (A) and ground. Are continuity results as specified? YES >> GO TO 2 NO >> Repair harness or connector. 2. CHECK LEFT CHANNEL AUDIO SIGNAL 1. Connect satellite radio tuner (factory installed) and AV control unit. 2. Turn ignition switch ON. 3. Check signal between satellite radio tuner (factory installed) Are voltage readings as specified? YES >> Replace AV control unit. Refer to AV-266, "Removal and Installation" . NO >> Replace satellite radio tuner. Refer to AV-276, "Removal and Installation" RIGHT CHANNEL A B Continuity Connector Terminal Connector Terminal M41 21 M43 21 Yes 22 22 A — Continuity Connector Terminal M41 21 Ground No 22 ALNIA0337GB (+) (-) Reference signal Connector Terminal M41 22 21 ALNIA0880GB SKIB3609E |