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AV SUBWOOFER AV-363 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P 1. Connect BOSE speaker amp. connector B74. 2. Turn ignition switch to ACC. 3. Push "POWER" switch. 4. Check voltage between subwoofer connector B72 terminal 4 and ground. Are the voltage readings as specified? YES >> GO TO 5. NO >> Replace BOSE speaker amp. Refer to AV-426, "Removal and Installation" 5. SUBWOOFER AUDIO SIGNAL CHECK 1. Connect BOSE speaker amp. connectors and subwoofer connector. 2. Turn ignition switch to ACC. 3. Push “POWER” switch. 4. Check the signal between BOSE speaker amp. harness connec- tor B74 terminals with CONSULT-III or oscilloscope. Is the audio signal voltage as specified? YES >> Replace subwoofer. Refer to AV-427, "Removal and Installation" NO >> GO TO 6. 6. HARNESS CHECK 1. Turn ignition switch OFF. (+) (-) Voltage Connector Terminal B72 4 Ground Battery voltage ALNIA0540GB Connector Terminals Condition Reference signal (+) (-) B74 19 3 Receive au- ALNIA0879GB SKIA0177E 2011 Pathfinder |