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AV REAR TWEETER AV-223 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P 1. Connect BOSE speaker amp. connectors and suspect tweeter connector. 2. Turn ignition switch to ACC. 3. Push “POWER” switch. 4. Check the signal between BOSE speaker amp. harness connec- tors B75 terminals with CONSULT-III or oscilloscope. Are audio signal voltage readings as specified? YES >> Replace suspect tweeter. Refer to . NO >> GO TO 3 3. HARNESS CHECK 1. Disconnect AV control unit connector M69 and BOSE speaker amp. connector B75. 2. Check continuity between AV control unit harness connector M69 (A) and BOSE speaker amp. harness connector B75 (B). 3. Check continuity between AV control unit harness connector M69 (A) and ground. Are the continuity results as specified? YES >> GO TO 4 NO >> • Check connector housings for disconnected or loose terminals. • Repair harness or connector. 4. REAR TWEETER SIGNAL CHECK Connector Terminals Condition Reference signal (+) (-) B75 9 10 Receive 11 12 ALNIA0534GB SKIA0177E A B Continuity Connector Terminal Connector Terminal M69 112 B75 26 Yes 118 25 108 24 114 23 A — Continuity Connector Terminal M69 112 Ground No 118 108 114 ALNIA0535GB 2010 Pathfinder 2010 Pathfinder |