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AV-10 < COMPONENT DIAGNOSIS > [AUDIO WITHOUT NAVIGATION] POWER SUPPLY AND GROUND CIRCUIT 2. CHECK POWER SUPPLY CIRCUIT (CONTINUITY) 1. Turn ignition switch OFF. 2. Disconnect microphone and AV control unit harness connectors. 3. Check continuity between microphone harness connector R15 4. Check continuity between microphone harness connector R15 Are the continuity test results as specified? YES >> GO TO 3 NO >> Repair harness or connector. 3. CHECK POWER SUPPLY CIRCUIT (AV CONTROL UNIT SIDE) 1. Connect AV control unit harness connector. 2. Turn ignition switch to ACC. 3. Check voltage between AV control unit harness connector M44 Is approximately 5V present? YES >> Inspection End. NO >> Replace AV control unit. Refer to XX-XX, "*****" 4. CHECK GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect microphone harness connector R15 and AV control unit harness connector M44. 3. Check continuity between microphone harness connector R15 (A) terminal 2 and AV control unit harness Does continuity exist? YES >> Inspection End. NO >> Repair harness or connector. A B Continuity Connector Terminal Connector Terminal R15 4 M44 29 Yes A — Continuity Connector Terminal R15 4 Ground No ALNIA0320GB Signal name Connector No. Terminal No. Ignition switch position Value (Approx.) MIC power M44 29 ACC 5V ALNIA0321GB A B Continuity Connector Terminal Connector Terminal R15 2 M44 28 Yes |