AUDIO AND VISUAL SYSTEM (w/o Navigation System) PROBLEM SYMPTOMS TABLE

Tech Tips


  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Audio Function
Symptom Suspected Area See page
Pressing power switch does not turn on system (for 10 Speakers). Proceed to "Pressing Power Switch does not Turn on System"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "AVC-LAN Circuit"

Click here

Radio receiver assembly

Click here

Pressing power switch does not turn on system (for 6 Speakers). Proceed to "Pressing Power Switch does not Turn on System"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Radio receiver assembly

Click here

Panel switch does not function (for 10 Speakers). Proceed to "Steering Pad Switch Circuit"

Click here

Proceed to "AVC-LAN Circuit"

Click here

Radio receiver assembly

Click here

Panel switch does not function (for 6 Speakers). Proceed to "Steering Pad Switch Circuit"

Click here

Radio receiver assembly

Click here

No sound can be heard from speakers (Audio is mute.) (for 10 Speakers). Proceed to "AVC-LAN Circuit"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "No Sound can be Heard from Speakers"

Click here

Proceed to "Stereo Component Amplifier Power Source Circuit"

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"

Click here

Proceed to "Speaker Circuit"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

No sound can be heard from speakers (Audio is mute.) (for 6 Speakers). Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "No Sound can be Heard from Speakers"

Click here

Proceed to "Speaker Circuit"

Click here

Radio receiver assembly

Click here

Sound quality is bad in all modes (Volume is too low.) (for 10 Speakers). Proceed to "Poor Sound Quality in All Modes (Low Volume)"

Click here

Proceed to "Speaker Circuit"

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

Sound quality is bad in all modes (Volume is too low.) (for 6 Speakers). Proceed to "Poor Sound Quality in All Modes (Low Volume)"

Click here

Proceed to "Speaker Circuit"

Click here

Radio receiver assembly

Click here

ASL does not function (for 10 Speakers). Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"

Click here

ASL does not function (for 6 Speakers). Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"

Click here

External device sound cannot be heard or sound quality is bad (Stereo jack is used.). Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Abnormal noise occurs (for 10 Speakers). Proceed to "Noise Occurs"

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

Abnormal noise occurs (for 6 Speakers). Proceed to "Noise Occurs"

Click here

Radio receiver assembly

Click here

Radio broadcast cannot be received or poor reception. Proceed to "Radio Broadcast cannot be Received or Poor Reception"

Click here

CD cannot be inserted/played or CD is ejected right after insertion. Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion"

Click here

CD cannot be ejected. Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "CD cannot be Ejected"

Click here

Sound quality is bad only when CD is played (Volume is too low.). Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)"

Click here

CD sound skips. Proceed to "CD Sound Skips"

Click here

Radio receiver does not illuminate at night. Proceed to "Illumination Circuit"

Click here

Radio receiver assembly

Click here

Radio receiver does not dim at night. Proceed to "Dimmer Signal Circuit"

Click here

Radio receiver assembly

Click here

Steering Pad Switch Function
Symptom Suspected Area See page
Audio system cannot be operated with steering pad switch. Proceed to "Steering Pad Switch Circuit"

Click here

Radio receiver assembly

Click here

Steering pad switch does not illuminate at night. Proceed to "Illumination Circuit"

Click here

Radio receiver assembly

Click here

"Bluetooth" Hands-free Function (w/ "Bluetooth" Hands-free System)
Symptom Suspected Area See page
Bluetooth is inoperative. Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Telephone microphone assembly

Click here

Radio receiver assembly

Click here

Cellular phone registration failure, phone directory transfer failure. Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure"

Click here

Cellular phone cannot send/receive. Proceed to "Cellular Phone cannot Send/Receive"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Radio receiver assembly

Click here

Cannot call in a certain place. Proceed to "Cannot Call in a Certain Place"

Click here

Other caller's voice cannot be heard, is too quiet, or distorted. Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted"

Click here

Proceed to "Cellular Phone Voice Circuit between Radio Receiver and Stereo Component Amplifier"

Click here

Telephone microphone assembly

Click here

Radio receiver assembly

Click here

Other caller cannot hear your voice, or your voice is too quiet or distorted. Proceed to "The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted"

Click here

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Telephone microphone assembly

Click here

Radio receiver assembly

Click here

"Bluetooth" can be connected while driving. Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"

Click here

"Bluetooth" Audio Function (w/ "Bluetooth" Audio System)
Symptom Suspected Area See page
Portable player cannot be registered. Proceed to "Portable Player cannot be Registered"

Click here

Radio receiver assembly

Click here

Portable player cannot be connected manually/automatically. Proceed to "Portable Player cannot be Registered"

Click here

Proceed to "Portable Player cannot be Connected Manually/Automatically"

Click here

Radio receiver assembly

Click here

Cellular phone with portable audio function cannot be recognized as "Bluetooth" audio device even when connected using "Bluetooth". Proceed to "Portable Player cannot be Registered"

Click here

Proceed to "Portable Player cannot be Connected Manually/Automatically"

Click here

Radio receiver assembly

Click here

Sound of portable player cannot be heard from speakers, or sound is low. Proceed to "Sound of Portable Player cannot be Heard from Speakers or Sound is Low"

Click here

Radio receiver assembly

Click here

Portable player does not play even after "Bluetooth" audio mode is selected. Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Click here

Radio receiver assembly

Click here

Portable player does not play. Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Click here

Radio receiver assembly

Click here

Track information such as track number, track name and elapsed play time is not displayed. Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Radio receiver assembly

Click here

"Bluetooth" signal condition is not displayed. Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Radio receiver assembly

Click here

Portable player cannot pause, select file, fast forward, fast rewind, play at random or scan. Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Radio receiver assembly

Click here

Noise occurs or sound skips when portable players plays. Proceed to "Noise Occurs or Sound Skips when Portable Player Plays"

Click here

Radio receiver assembly

Click here

Registered device cannot be deleted. Proceed to "Registered Device cannot be Deleted"

Click here

Radio receiver assembly

Click here

USB Audio System Function
Symptom Suspected Area See page
Sound cannot be heard or sound quality is bad (Stereo jack is used.) (for 10 Speakers). Proceed to "Sound Signal Circuit between Radio Receiver and Multi-media Interface ECU"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Multi-media Interface ECU"

Click here

Proceed to "Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media interface ECU assembly

Click here

Radio receiver assembly

Click here

Sound cannot be heard or sound quality is bad (Stereo jack is used.) (for 6 Speakers). Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

USB Device or "iPod" is not recognized (for 10 Speakers). Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media interface ECU assembly

Click here

USB Device or "iPod" is not recognized (for 6 Speakers). Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Track information such as track, artist and album names are not displayed (for 10 Speakers). Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media interface ECU assembly

Click here

Track information such as track, artist and album names are not displayed (for 6 Speakers). Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

USB device or "iPod" is recognized but cannot play or play in a sorted order (for 10 Speakers). Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media interface ECU assembly

Click here

USB device or "iPod" is recognized but cannot play or play in a sorted order (for 6 Speakers). Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here