AUDIO AND VISUAL SYSTEM (w/ 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.

Display Function
Symptom Suspected Area See page
Pressing power switch does not turn on system. Proceed to "Radio Receiver Power Source Circuit"

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Proceed to "Pressing Power Switch does not Turn on System"

Click here

Multi-media module receiver assembly

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Black screen (No image appears on navigation/audio screen.) Proceed to "Black Screen"

Click here

Proceed to "Check Software Error History" in Operation Check

Click here

Proceed to "Visual Mute Signal Circuit between Radio Receiver and Multi-display"

Click here

Proceed to "Display Signal Circuit between Multi-display and Radio Receiver"

Click here

Hard disc

Click here

Multi-display assembly

Click here

Multi-media module receiver assembly

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Display does not dim (does not change to night screen) with tail switch on. Proceed to "Display does not Dim when Light Control Switch is Turned ON"

Click here

Proceed to "Illumination Circuit"

Click here

Multi-display assembly

Click here

Multi-media module receiver assembly

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Power does not turn off. (Screen remains on.) Proceed to "Radio Receiver Power Source Circuit"

Click here

Multi-media module receiver assembly

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Screen is distorted. Proceed to "Radio Receiver Power Source Circuit"

Click here

Multi-display assembly

Click here

Multi-media module receiver assembly

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Screen flicker or color distortion Proceed to "Screen Flicker or Color Distortion"

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Proceed to "Visual Mute Signal Circuit between Radio Receiver and Multi-display"

Click here

Proceed to "Display Signal Circuit between Multi-display and Radio Receiver"

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Proceed to "Radio Receiver Power Source Circuit"

Click here

Multi-media module receiver assembly

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Panel Switch and Touch Switch Function
Symptom Suspected Area See page
Illumination for panel switches does not come on with tail switch on. Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON"

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Proceed to "Illumination Circuit"

Click here

Multi-media module receiver assembly

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Panel switches do not function. Proceed to "Panel Switches do not Function"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Multi-media module receiver assembly

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Touch panel switch does not function. Proceed to "Touch Panel Switch does not Function"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Multi-media module receiver assembly

Click here

Steering Pad Switch Function
Symptom Suspected Area See page
System cannot be operated by steering pad switch. Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Multi-media module receiver assembly

Click here

Illumination for steering pad switch does not come on with tail switch on. Proceed to "Illumination Circuit"

Click here

Multi-media module receiver assembly

Click here

Customize Startup Image or Screen Off Image Function
Symptom Suspected Area See page
Screen cannot be changed to UIC setting screen. Multi-media module receiver assembly

Click here

Thumbnails for opening image setting or screen off image setting do not update when USB device is connected. Check that the USB device was not disconnected while transferring an image. -
Check that the screen was not changed to another function menu while transferring an image. -
Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

Transfer button cannot be pressed. Check that a USB device is connected. -
Check that the USB device is not in use. (USB audio system is playing etc.) -
Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

Image data in USB device cannot be displayed. Check that the designated folder name is used. -
Check that the file extension of the data is JPG or JPEG. -
Check that the file name is 32 characters or less and available language is used. -
Check that the image data size is 10 MB or less. -
Check that the file system of the USB device is FAT16 or FAT32. -
Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

Set opening image or screen off image is not displayed. Check if it is the first start-up after disconnecting and reconnecting the +B terminal. (Reading from the HDD may be slow when the system is first starting-up.) -
Set the opening image or screen off image again. -
Multi-media module receiver assembly

Click here

Stored image cannot be deleted. Multi-media module receiver assembly

Click here

Message indicating that USB device cannot be accessed is displayed. Check that the USB device has not been disconnected while the navigation system is recognizing it. -
Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

Thumbnail images for opening image or screen off image are not displayed on setting screen. Check if it is the first start-up after disconnecting and reconnecting the +B terminal. (Reading from the HDD may be slow when the system is first starting-up.) -
Set the opening image or screen off image again. -
Multi-media module receiver assembly

Click here

Image cannot be set for opening image or screen off image on setting screen. Set the opening image or screen off image again. -
Multi-media module receiver assembly

Click here

General Audio Function
Symptom Suspected Area See page
No sound can be heard from speakers. Proceed to "No Sound can be Heard from Speakers"

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Proceed to "Speaker Circuit"

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

Click here

Proceed to "AVC-LAN Circuit"

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Proceed to "Stereo Component Amplifier Power Source Circuit"

Click here

Stereo component amplifier assembly

Click here

Multi-media module receiver assembly

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Abnormal noise occurs. Proceed to "Noise Occurs"

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Stereo component amplifier assembly

Click here

Multi-media module receiver assembly

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Sound quality is bad in all modes. (Volume is too low.) Check that the ASL function is off. -
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

Stereo component amplifier assembly

Click here

Multi-media module receiver assembly

Click here

ASL does not function. Check that the ASL function is on. -
Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"

Click here

Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"

Click here

Stereo component amplifier assembly

Click here

Multi-media module receiver assembly

Click here

Voice guidance does not function. Proceed to "Voice Guidance does not Function"

Click here

Proceed to "Speaker Circuit"

Click here

Stereo component amplifier assembly

Click here

Multi-media module receiver assembly

Click here

Voice menu screen is not displayed. (Voice recognition function does not turn on.) Check if the voice recognition prompts function is "On". -
Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Multi-media module receiver assembly

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When voice recognition switch is pressed, a short beep is emitted but voice cannot be recognized properly. Proceed to "Voice is not Recognized"

Click here

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Multi-media module receiver assembly

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Customizable parameters cannot be changed. (Customizable parameters can be changed by using the intelligent tester.) Multi-media module receiver assembly

Click here

FM or AM Radio Function
Symptom Suspected Area See page
Radio broadcast cannot be received or poor reception. Proceed to "Radio Broadcast cannot be Received or Poor Reception"

Click here

Radio broadcast can be received but radio station cannot be displayed. (Some radio stations do not provide their name information.) Multi-media module receiver assembly

Click here

"iPod" tagging function cannot be used. Check if a message indicating that the capacity for tag information is full is displayed. -
Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

CD or DVD Player Function
Symptom Suspected Area See page
Disc cannot be inserted/played or disc is ejected right after insertion. Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "Disc cannot be Inserted or is Ejected Right After Insertion"

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Disc cannot be ejected. Proceed to "Check Optical Disc Error History" in Operation Check

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Proceed to "Disc cannot be Ejected"

Click here

Disc sound skips. Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "CD/DVD Sound Skips"

Click here

Screen color is poor only when watching DVD. Change the color settings on the screen adjustment screen. -
Multi-media module receiver assembly

Click here

Sound quality is bad only when disc is played. (Volume is too low.) Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "Sound Quality is Bad Only when Disc is played (Volume is Too Low)"

Click here

AUX Function
Symptom Suspected Area See page
External device sound cannot be heard or sound quality is bad. (Stereo jack is used.) Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" (w/o Rear Seat Entertainment System)

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Video Terminal" (w/ Rear Seat Entertainment System)

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

"AUX" is not displayed on system check mode screen. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" (w/o Rear Seat Entertainment System)

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Video Terminal" (w/ Rear Seat Entertainment System)

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

Voice Recognition Function
Symptom Suspected Area See page
Voice menu screen is not displayed. (Voice recognition function does not turn on.) Check if the voice recognition prompts function is "On". -
Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Multi-media module receiver assembly

Click here

When voice recognition switch is pressed, a short beep is emitted but voice cannot be recognized properly. Proceed to "Voice is not Recognized"

Click here

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Hard disc

Click here

Multi-media module receiver assembly

Click here

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

Click here

Multi-media module receiver assembly

Click here

Cellular phone registration failure. Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Click here

Multi-media module receiver assembly

Click here

Cellular phone cannot make outgoing/incoming calls or call in a certain place. Proceed to "Cellular Phone cannot Make Outgoing/Incoming Calls"

Click here

Multi-media module receiver assembly

Click here

Message that prompts to check the cellular phone is displayed. Proceed to "Cellular Phone cannot Make Outgoing/Incoming Calls"

Click here

Multi-media module receiver assembly

Click here

Phonebook data cannot be transferred manually or automatically. Check the automatic download contract setting -
When transferring phonebook data, OBEX authentication may be required. Enter "1234" into the "Bluetooth" phone. -
Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Click here

Multi-media module receiver assembly

Click here

Volume of other caller's voice is not at an appropriate volume level, there is noise, sound quality is poor or other caller's voice cannot be heard. Proceed to "Check Hands-free Voice Quality and Volume Setting" in Operation Check

Click here

Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted"

Click here

Multi-media module receiver assembly

Click here

Stereo component amplifier assembly

Click here

Other caller cannot hear your voice at an appropriate volume level, there is noise or an echo, sound quality is poor or other caller cannot hear your voice. Proceed to "Check Hands-free Voice Quality and Volume Setting" in Operation Check

Click here

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

Multi-media module receiver assembly

Click here

E-mail/SMS cannot be received or sent. Check whether messages can be received/sent using the cellular phone. -
Check that the phone is registered as a hands-free device. -
Check the sending and receiving e-mails via the navigation system setting. -
Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Click here

Multi-media module receiver assembly

Click here

"Bluetooth" Audio Function
Symptom Suspected Area See page
Portable player cannot be registered. Proceed to "Portable Player cannot be Registered"

Click here

Multi-media module 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

Multi-media module 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

Multi-media module receiver assembly

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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

Multi-media module receiver assembly

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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

Multi-media module receiver assembly

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

Click here

Multi-media module receiver assembly

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Track information such as track number, track name, elapsed play time and playlist 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

Multi-media module receiver assembly

Click here

Operation switches for portable player such as play, pause, repeat, random and scan are 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

Multi-media module receiver assembly

Click here

Battery condition of portable player 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

Multi-media module receiver assembly

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"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

Multi-media module receiver assembly

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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

Multi-media module receiver assembly

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

Click here

Multi-media module receiver assembly

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

Click here

Multi-media module receiver assembly

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USB Audio System Function
Symptom Suspected Area See page
USB audio system sound cannot be heard or sound quality is bad. (USB connector is used.) Proceed to "Data Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

USB device or "iPod" is not recognized. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

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

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

USB device or "iPod" is recognized but cannot play nor play in a sorted order. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

Click here

Album cover art cannot be displayed. Check that Display Cover Art on the "iPod" Settings screen is set to on. -
Check that a JPEG file is used for the cover art. -
"iPod" battery cannot be charged. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Multi-media module receiver assembly

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Fuel Consumption Function
Symptom Suspected Area See page
"Fuel Consumption" icon is dimmed. Check if other icons or items displayed on screen have any problems. -
Multi-media module receiver assembly

Click here

Graph is not displayed on "Trip Information" screen. Recheck with the engine running. -
Multi-media module receiver assembly

Click here

Cruise range is not displayed on "Trip Information" screen. Turn engine switch on (IG) and recheck. -
Multi-media module receiver assembly

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Graph is not updated on "Past record" screen even though "Clear" is selected. Turn engine switch on (IG) and recheck. -
Multi-media module receiver assembly

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Graph is not displayed on "Past record" screen. Turn engine switch on (IG) and recheck. -
Multi-media module receiver assembly

Click here