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AV AUDIO SYSTEM AV-49 < SYMPTOM DIAGNOSIS > [AUDIO SYSTEM] C D E F G H I J K L M B A O P RELATED TO HANDS-FREE PHONE • Before performing diagnosis, confirm that the cellular phone being used by the customer is compatible with the vehicle. • It is possible that a malfunction is occurring due to a version change of the phone even though the phone is a compatible type. This can be confirmed by changing the cellular phone to another compatible type, and Check Compatibility 1. Make sure the customer ′ s Bluetooth ® related concern is understood. 2. Verify the customer ′ s concern. NOTE: ′ s phone may be required, depending upon their concern. 3. Write down the customer ′ s phone brand, model and service provider. NOTE: Noise is mixed with audio. Noise comes out from all speakers. Malfunction in audio unit. AV-15, "On Board Diagnosis Func- . Noise comes out only from a certain speak- • Poor connector connection of speaker. audio unit and speaker. - (front tweeter). - (front door speaker). - (rear door speaker). • Malfunction in speaker. lash and looseness). - AV-55, "Removal and Installation" tweeter). - AV-56, "Removal and Installation" door speaker). - AV-57, "Removal and Installation" door speaker). • Malfunction in audio unit. Refer to . Noise is mixed with radio only (when the ve- Poor connector connection of antenna or Amp., Satellite Antenna and Antenna Feed- No radio reception or poor reception. • Other audio sounds are normal. poor reception is caused even after mov- • Antenna amp. ON signal circuit malfunc- tion. • Poor connector connection of antenna or antenna feeder. Amp., Satellite Antenna and Antenna Buzz/rattle sound from speaker The majority of buzz/rattle sounds are not Refer to "SQUEAK AND RATTLE TROU- Symptoms Check items Probable malfunction location |