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Audio Function

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE - AUDIO

Symptom Verification
No sound can be heard from speakers (audio is mute),
  1. "NO SOUND CAN BE HEARD FROM SPEAKERS (AUDIO IS MUTE)"
  2. Mute signal circuit (radio and navigation assy - stereo component amplifier assy)
  3. Mute signal circuit (from stereo component controller assy) ((2))
  4. Mute signal circuit (from multi-display controller sub-assy) ((1))
  5. Sound signal circuit (radio and navigation assy - stereo component amplifier assy)
  6. Speaker circuit
  7. Power source circuit (stereo component amplifier assy)
  8. Replace stereo component amplifier assy
  9. Replace radio and navigation assy
Radio broadcast cannot be received (poor reception).
  1. "RADIO BROADCAST CANNOT BE RECEIVED (POOR RECEPTION)"
  2. Repair antenna assy
  3. Replace radio and navigation assy
CD cannot be inserted/played or CD is ejected right after insertion.
  1. "CD CANNOT BE INSERTED/PLAYED OR CD IS EJECTED RIGHT AFTER INSERTION"
  2. Power source circuit (radio and navigation assy)
  3. Replace radio and navigation assy
CD cannot be ejected.
  1. "CD CANNOT BE EJECTED"
  2. Power source circuit (radio and navigation assy)
  3. Replace radio and navigation assy
Abnormal noise occurs.
  1. "ABNORMAL NOISE OCCURS"
  2. Mute signal circuit (radio and navigation assy - stereo component amplifier assy)
  3. Mute signal circuit (from stereo component controller assy) ((1))
  4. Mute signal circuit (from multi-display controller sub-assy) ((1))
  5. Power source circuit (stereo component amplifier assy)
  6. Power source circuit (radio and navigation assy)
  7. Replace stereo component amplifier assy
  8. Replace radio and navigation assy
CD sound skips.
  1. "CD SOUND SKIPS"
  2. Replace radio and navigation assy
Poor sound quality in all modes (low volume).
  1. "POOR SOUND QUALITY IN ALL MODES (LOW VOLUME)"
  2. Mute signal circuit (radio and navigation assy - stereo component amplifier assy)
  3. Mute signal circuit (from stereo component controller assy) ((2))
  4. Mute signal circuit (from multi-display controller sub-assy) ((1))
  5. Power source circuit (stereo component amplifier assy)
  6. Power source circuit (radio and navigation assy)
  7. Replace stereo component amplifier assy
  8. Replace radio and navigation assy
(1) w/Rear Seat Entertainment System

(2) w/Rear Seat Audio System
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