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AV-332 < SYMPTOM DIAGNOSIS > [NAVIGATION] MULTI AV SYSTEM No sound comes out or the level of the No sound from all speakers. • Speaker circuit shorted to ground. . • Amp ON signal circuit malfunction. • Audio amplifier power supply and ground circuits malfunction. Only a certain speaker (front door speaker • Poor connector connection of speaker. AV control unit and audio amplifier. - (front door speaker). - (front tweeter). - (rear door speaker). - (rear tweeter). - (sub- woofer). • Sound signal circuit malfunction between audio amplifier and speaker. - (front door speaker). - (front tweeter). - (rear door speaker). - (rear tweeter). - (sub- woofer). • Malfunction in speaker. Refer to: - AV-351, "Removal and Installation" door speaker). - AV-350, "Removal and Installation" tweeter). - AV-352, "Removal and Installation" (rear door speaker). - AV-353, "Removal and Installation" (rear tweeter). - AV-354, "Removal and Installation" (sub- woofer). • Malfunction in AV control unit. • Malfunction in audio amplifier. Replace Audio amplifier. Refer to 349, "Removal and Installation" Symptoms Check items Probable malfunction location |