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AV-108 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] POWER SUPPLY AND GROUND CIRCUIT (COUPE) 1. Connect Bluetooth control unit connector. 2. Turn ignition switch ON. 3. Check voltage between Bluetooth control unit harness connec- tor and ground. Is proper voltage present? YES >> Inspection End. NO >> Replace Bluetooth control unit. Refer to "Removal and Installation - Coupe" . 4. CHECK GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect Bluetooth control unit and microphone connectors. 3. Check continuity between microphone harness connector R7 terminal 2 and Bluetooth control unit harness connector B126 terminal 8. Is continuity present? YES >> Inspection End. NO >> Repair harness or connector. (+) (-) Ignition switch po- sition Value (Approx.) Connector Terminal B55 29 Ground ON 5V ALNIA0133ZZ Signal name Continuity Microphone ground Continuity should exist. ALNIA0170ZZ |