Toyota 4Runner manuals

Toyota 4Runner: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary.

HINT:

  • 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

Black screen (No image appears on navigation/audio screen)

Proceed to "Black Screen"


Proceed to "Check Software Error History" in Operation Check


Navigation receiver assembly


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"


Proceed to "Illumination Circuit"


Navigation receiver assembly


Power does not turn off (Screen remains on)

Proceed to "Navigation Receiver Assembly Power Source Circuit"


Navigation receiver assembly


Screen is distorted

Proceed to "Navigation Receiver Assembly Power Source Circuit"


Navigation receiver assembly


Screen flicker or color distortion

Proceed to "Screen Flicker or Color Distortion"


Proceed to "Navigation Receiver Assembly Power Source Circuit"


Navigation receiver assembly


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"


Proceed to "Illumination Circuit"


Navigation receiver assembly


Panel switches do not function

Proceed to "Panel Switches do not Function"


Proceed to "Navigation Receiver Assembly Power Source Circuit"


Navigation receiver assembly


Touch panel switch does not function

Proceed to "Touch Panel Switch does not Function"


Proceed to "Navigation Receiver Assembly Power Source Circuit"


Navigation receiver assembly


Navigation function switches can be operated while vehicle is driving

Proceed to "Parking Brake Switch Circuit"


Navigation receiver assembly


Steering Pad Switch Function

Symptom

Suspected Area

See page

System cannot be operated by steering pad switch

Proceed to "Panel Switches do not Function"


Proceed to "Steering Pad Switch Circuit"


Navigation receiver assembly


Illumination for steering pad switch does not come on with tail switch on

Proceed to "Illumination Circuit"


Navigation receiver assembly


Customize Startup Image or Screen Off Image Function

Symptom

Suspected Area

See page

Screen cannot be changed to UIC setting screen

Navigation receiver assembly


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"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


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"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


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"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


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 SD card may be slow when the system is first starting-up)

-

Set the opening image or screen off image again

-

Navigation receiver assembly


Stored image cannot be deleted

Navigation receiver assembly


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"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


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

-

Navigation receiver assembly


Image cannot be set for opening image or screen off image on setting screen

Set the opening image or screen off image again

-

Navigation receiver assembly


Navigation Function

Symptom

Suspected Area

See page

GPS mark is not displayed

Proceed to "GPS Mark is not Displayed"


Navigation antenna assembly


Navigation receiver assembly


Date and time on navigation screen is different from actual date and time

Proceed to "GPS Mark is not Displayed"


Navigation antenna assembly


Navigation receiver assembly


Vehicle position mark deviates from correct position and does not return to correct position

Proceed to "GPS Mark is not Displayed"


Navigation antenna assembly


Navigation receiver assembly


Cursor or map rotates when vehicle is stopped

Proceed to "Cursor or Map Rotates when Vehicle Stopped"


Navigation receiver assembly


Vehicle position mark moves in the opposite direction to the vehicle

Proceed to "Cursor or Map Rotates when Vehicle Stopped"


Proceed to "Reverse Signal Circuit"


Navigation receiver assembly


Vehicle position mark deviates from and returns to correct position repeatedly even though GPS mark is displayed

Proceed to "GPS Mark is not Displayed"


Drive the vehicle for sensor learning (At a place where GPS signals can be received, drive the vehicle clockwise and counterclockwise in at least a 200 meter square 2 times or more)

-

Navigation antenna assembly


Navigation receiver assembly


Vehicle position mark moves slow or fast

Proceed to "GPS Mark is not Displayed"


Navigation antenna assembly


Navigation receiver assembly


Voice guidance does not function

Proceed to "Voice Guidance does not Function"


Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier"*1


Proceed to "Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver"*2


Proceed to "Speaker Circuit"


Proceed to "Navigation Voice Circuit"


Proceed to "Stereo Component Amplifier Power Source Circuit"*1


DCM (Telematics transceiver)*2


Stereo component amplifier assembly*1


Navigation receiver assembly


Map display is incomplete

SD card

-

Navigation receiver assembly


Route cannot be calculated

Proceed to "Route cannot be Calculated"


Navigation receiver assembly


Navigation system cannot record memory point registration or each item setting

Navigation receiver assembly


A message indicating to wait for a while because of low temperature is displayed

Start the engine and increase cabin temperature (near navigation receiver assembly)

-

Navigation receiver assembly


A message is displayed because map data cannot be read, and current position screen is not displayed

If message appears only when driving on rough roads, check if message disappears when vehicle is stopped

-

SD card

-

Navigation receiver assembly


Traffic information is not displayed on navigation screen

Proceed to "Traffic Information is not Displayed"


Map screen turns white or blue (GPS receiving status is displayed normally, and switches and own vehicle position mark are also displayed normally)

Change map scale to smallest (a scale that shows a large area)

-

SD card

-

Navigation receiver assembly


Reverse signal does not change in vehicle signal check mode

Proceed to "Reverse Signal Circuit"


Navigation receiver assembly


Parking brake switch signal does not change in vehicle signal check mode

Proceed to "Parking Brake Switch Circuit"


Navigation receiver assembly


  • *1: for 9 Speakers
  • *2: w/ Manual (SOS) Switch
General Audio Function

Symptom

Suspected Area

See page

Pressing power switch does not turn on system

Proceed to "Navigation Receiver Assembly Power Source Circuit"


Navigation receiver assembly


No sound can be heard from speakers

Proceed to "No Sound can be Heard from Speakers"


Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier"*1


Proceed to "Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver"*2


Proceed to "Speaker circuit"


Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier"*1


Proceed to "Stereo Component Amplifier Power Source Circuit"*1


DCM (Telematics transceiver)*2


Stereo component amplifier assembly*1


Navigation receiver assembly


Abnormal noise occurs

Proceed to "Noise Occurs"


Stereo component amplifier assembly*1


Navigation receiver assembly


DCM (Telematics transceiver)*2


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)"


Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier"*1


Proceed to "Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver"*2


Proceed to "Speaker circuit"


Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier"*1


DCM (Telematics transceiver)*2


Stereo component amplifier assembly*1


Navigation receiver assembly


ASL does not function

Check that the ASL function is on

-

Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"*1


Stereo component amplifier assembly*1


Navigation receiver assembly


  • *1: for 9 Speakers
  • *2: w/ Manual (SOS) Switch
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"


Radio broadcast can be received but radio station cannot be displayed (Some radio stations do not provide their name information)

Navigation receiver assembly


Radio broadcast can be displayed but radio broadcast cannot be heard from speakers

Check the volume settings

-

Navigation receiver assembly


Radio broadcast can be received but station list cannot be displayed

Wait for 120 seconds in radio mode, and select the "Refresh" switch on the station list screen

-

Navigation receiver assembly


Radio broadcast can be received but station list cannot be updated

Select the "Refresh" switch on the station list screen

-

Wait for 10 minutes with the engine switch on (ACC), and select the "Refresh" switch on the station list screen again

-

Navigation receiver assembly


After the voice recognition function or hands-free function is turned off, the cache radio does not operate

Check that the cache radio setting is on

-

Navigation receiver assembly


When the cache radio is playing, sound is interrupted, sound cannot be heard or sound quality is poor

Check if similar symptoms occur when receiving conventional FM/AM radio broadcasts

-

Check if similar symptoms occur when receiving other broadcasts

-

Move the vehicle to a place where the reception sensitivity is good and check again

-

Navigation receiver assembly


When the cache radio is playing, sound can be heard, but no information is displayed (some radio stations do not provide their name information)

Check if similar symptoms occur when receiving other broadcasts

-

Move the vehicle to a place where the reception sensitivity is good and check again

-

Navigation receiver assembly


HD Radio Function (w/ HD Radio Function)

Symptom

Suspected Area

See page

Only "HD Radio" stations cannot be heard or selected, or their analog or digital sound cannot be changed

Check the "HD Radio" settings

-

Navigation receiver assembly


"iPod" tagging function cannot be used

Check if a message indicating that the capacity for tag information is full is displayed

-

Check that the cache radio is not playing (when the cache radio is playing, "iPod" tagging function cannot be used)

-

Proceed to "USB Audio System Recognition/Play Error"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


When the HD radio is playing, cover art may not be displayed

When a song unregistered to the Gracenote CDDB is playing or cover art information is not provided by the broadcast station, its cover art cannot be displayed

-

When the HD radio is playing, cover art cannot be displayed

Navigation receiver assembly


Broadcast station logo cannot be displayed

Check if similar symptoms occur when receiving other broadcasts

-

Check if similar symptoms occur with another vehicle

-

Navigation receiver assembly


SPS channel cannot be selected

Check that HD radio FM mode is selected

-

After pressing the "Refresh" switch, check that the SPS channel is on the station list

-

Navigation receiver assembly


When the SPS channel is selected, sound cannot be heard

After pressing the "Refresh" switch, select the SPS channel on the station list

-

Navigation receiver assembly


SDARS System Function (w/ SDARS System)

Symptom

Suspected Area

See page

Satellite radio broadcast cannot be received or reception is bad

Proceed to "Satellite Radio Broadcast cannot be Received"


Stereo component tuner assembly


Navigation receiver assembly


Satellite radio cannot receive pay-type broadcasts

Proceed to "Satellite Radio Broadcast cannot be Received"


Stereo component tuner assembly


Navigation receiver assembly


Satellite radio broadcast cannot be selected or after selecting broadcast, broadcast cannot be added into memory

Proceed to "Satellite Radio Broadcast cannot be Received"


Proceed to "Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory"


Stereo component tuner assembly


Navigation receiver assembly


Satellite radio can be displayed but radio broadcast cannot be heard from speakers

Check the volume settings

-

Proceed to "Satellite Radio Broadcast cannot be Received"


Stereo component tuner assembly


Navigation receiver assembly


Broadcast station logo cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"


Proceed to "Data Signal Circuit between Navigation Receiver Assembly and Extension Module"


Stereo component tuner assembly


Navigation receiver assembly


Satellite radio text information cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"


Stereo component tuner assembly


Navigation receiver assembly


Satellite radio broadcast station cannot be selected

(scan cannot be performed)

Proceed to "Satellite Radio Broadcast cannot be Received"


Stereo component tuner assembly


Proceed to "Satellite Radio Broadcast cannot be Received"


When the satellite radio is playing, some cover art may not be displayed

When a song unregistered to the Gracenote CDDB is playing, its cover art cannot be displayed

-

When the satellite radio is playing, cover art cannot be displayed

Navigation receiver assembly


CD Player Function

Symptom

Suspected Area

See page

Disc cannot be played or player does not function with disc

Proceed to "Disc Player Outline" in System Description and check if the disc is compatible with the disc player


Proceed to "Check Optical Disc Error History" in Operation Check


Navigation receiver assembly


Disc cannot be inserted/played or disc is ejected right after insertion

Proceed to "Check Optical Disc Error History" in Operation Check


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


Disc cannot be ejected

Proceed to "Check Optical Disc Error History" in Operation Check


Proceed to "Disc cannot be Ejected"


Disc sound skips

Proceed to "Check Optical Disc Error History" in Operation Check


Proceed to "CD Sound Skips"


Sound quality is bad only when disc is played (Volume is too low)

Proceed to "Check Optical Disc Error History" in Operation Check


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


Album cover art cannot be displayed

Check that Display Cover Art on the disc settings screen is set to on

-

Check if similar symptoms occur with another vehicle

-

If an indication to update the Gracenote database appears on the album cover art screen and update data has been downloaded to the navigation receiver assembly, update the Gracenote database to the latest version

-

Navigation receiver assembly


AUX (Stereo Jack) 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 Navigation Receiver Assembly and Stereo Jack Adapter"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


"AUX/VTR" is not displayed on system check mode screen

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


No. 1 stereo jack adapter assembly


Navigation receiver assembly


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"


Proceed to "Steering Pad Switch Circuit"


Navigation receiver assembly


When voice recognition switch is pressed, a short beep is emitted but voice cannot be recognized properly

Proceed to "Voice is not Recognized"


Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly"


SD card

-

Navigation receiver assembly


"Bluetooth" Hands-free Function

Symptom

Suspected Area

See page

"Bluetooth" is inoperative (In-vehicle device cannot be recognized by the cellular phone)

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


"Bluetooth" compatible cellular phone cannot be registered

Proceed to "Cellular Phone Registration Failure"


"Bluetooth" compatible cellular phone cannot be connected

Check that no other cellular phone is connected as a hands-free device

-

Bring the cellular phone near the in-vehicle device and reconnect it

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


"Bluetooth" compatible cellular phone connection is disconnected

Bring the cellular phone near the in-vehicle device and check if it is reconnected

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


"Bluetooth" compatible cellular phone cannot be connected automatically (can be connected manually)

Check that "Bluetooth" automatic connection setting of the in-vehicle device is on

-

Navigation receiver assembly


Message that prompts to check the cellular phone is displayed

Bring the cellular phone near the in-vehicle device and check if it is reconnected

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


When the ignition switch is turned on (to ACC), instructions for checking the connection condition between the in-vehicle device and cellular phone are displayed

Turn the cellular phone connection conformation display on the in-vehicle device off

-

Phonebook data cannot be transferred

Check that the phonebook automatic transfer setting of the in-vehicle device is on

-

Enter "1234" into the "Bluetooth" phone (when transferring phonebook data, OBEX authentication may be required)

-

Check that no applications on the cellular phone are running

-

If using "Bluetooth" audio function, cancel the "Bluetooth" audio player connection and check the operation

-

Transfer phonebook data manually

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


Phonebook data is cleared

Navigation receiver assembly


Phonebook data cannot be edited

Check that the phonebook data automatic transfer setting is off

-

Navigation receiver assembly


All the transferred phonebook data is sorted to "Other"

Check that no applications on the cellular phone are operating

-

Check that phonebook data in the cellular phone is not stored to the SIM card

-

Proceed to "Cellular Phone Inspection"


Explain to the customer that all the transferred phonebook data may be stored to "Other" depending on cellular phone

-

Cellular phone cannot make outgoing/incoming calls

Move the vehicle into a cellular phone service area, check that the "Bluetooth" device is connected to the vehicle and operate device again

-

Check that the cellular phone can make outgoing/incoming calls properly when not connected via "Bluetooth"

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


Other caller's voice is interrupted by noise or sound quality is poor

Check the receiving voice volume (if it is too high, voice may sound distorted)

-

Make a call with the cellular phone disconnected from "Bluetooth" and check that other caller's voice can be heard clearly

-

Proceed to "Check Hands-free Voice Quality Setting" in Operation Check


Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


Other caller's voice cannot be heard

Check that reception voice volume is not set to minimum

-

Make a call with the cellular phone disconnected from "Bluetooth" and check that other caller's voice can be heard clearly

-

Proceed to "Check Hands-free Voice Quality Setting" in Operation Check


Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


Caller's voice (your voice) is interrupted by noise or sound quality is poor

Check the transmitting voice volume (if it is too high, voice may sound distorted)

-

Check that nothing can cause noise around the microphone (an outlet of the air conditioning system facing the microphone, wind from an open window, additional devices, etc. may affect noise occurrence)

-

Proceed to "Check Hands-free Voice Quality Setting" in Operation Check


Proceed to "Cellular Phone Inspection"


Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly"


Other caller cannot hear your voice

When talking on the cellular phone, check that the mute button is not pressed

-

Check that nothing can cause noise around the microphone (an outlet of the air conditioning system facing the microphone, wind from an open window, additional devices, etc. may affect noise occurrence)

-

Proceed to "Check Hands-free Voice Quality Setting" in Operation Check


Proceed to "Cellular Phone Inspection"


Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly"


No notification when a new SMS/MMS/e-mail has been received

Check the SMS/MMS/e-mail notification settings on the cellular phone and the navigation receiver assembly

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


SMS/MMS/e-mail cannot be replied to

Move the vehicle into a cellular phone service area, and check the operation of the navigation receiver assembly and cellular phone

-

Check that the cellular phone can send an SMS/MMS/e-mail

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


Received SMS/MMS/e-mail cannot be read

Check the SMS/MMS/e-mail transfer settings on the cellular phone and the navigation receiver assembly

-

Proceed to "Cellular Phone Inspection"


Navigation receiver assembly


"Bluetooth" Audio Function

Symptom

Suspected Area

See page

Portable player cannot be registered

Proceed to "Portable Player cannot be Registered"


Navigation receiver assembly


Portable player cannot be connected manually/automatically

Proceed to "Portable Player cannot be Registered"


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


Navigation receiver assembly


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"


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


Navigation receiver assembly


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"


Navigation receiver assembly


Portable player does not play even after "Bluetooth" audio mode is selected

Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"


Navigation receiver assembly


Portable player does not play

Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"


Navigation receiver assembly


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"


Navigation receiver assembly


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"


Navigation receiver assembly


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"


Navigation receiver assembly


"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"


Navigation receiver assembly


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"


Navigation receiver assembly


Noise occurs or sound skips when portable player plays

Proceed to "Noise Occurs or Sound Skips when Portable Player Plays"


Navigation receiver assembly


Registered device cannot be deleted

Proceed to "Registered Device cannot be Deleted"


Navigation receiver assembly


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 Navigation Receiver and Stereo Jack Adapter"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


USB device or "iPod" is not recognized

Proceed to "USB Audio System Recognition/Play Error"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


Track information such as track, artist and album names are not displayed

Proceed to "USB Audio System Recognition/Play Error"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


USB device or "iPod" is recognized but cannot play nor play in a sorted order

Proceed to "USB Audio System Recognition/Play Error"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


Album cover art cannot be displayed

Check that Display Cover Art on the "iPod" Settings screen is set to on

-

Check if similar symptoms occur with another vehicle

-

If an indication to update the Gracenote database appears on the album cover art screen and update data has been downloaded to the Navigation receiver assembly, update the Gracenote database to the latest version

-

Navigation receiver assembly

-

User set album cover art cannot be displayed

Check if the priority display of Gracenote database album cover art setting is off

-

Check that a JPEG file is used for the album cover art registered to the music data in the USB device or "iPod" - Navigation receiver assembly

-

Navigation receiver assembly


"iPod" battery cannot be charged

Proceed to "USB Audio System Recognition/Play Error"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


Screen is distorted or not displayed only when using the video function of an "iPod"

Check if "iPod" is set to output images

-

Check if appropriate image signal setting (NTSC/PAL) is selected

-

Check if video sound input is set to "A/V"

-

Connect using a known good cable and check if the image is output

-

Proceed to "Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter"


No. 1 stereo jack adapter assembly


Navigation receiver assembly


Entune Function (w/ Entune Function)

Symptom

Suspected Area

See page

An Entune system error message is displayed on the screen

Follow on screen instructions

-

Proceed to "Confirm Cellular Phone Functionality"


Proceed to "Confirm Vehicle Headunit Functionality"


Proceed to "Entune Reset Procedure" in Operation Check


Navigation receiver assembly


Entune apps and services are not operating as expected

Proceed to "Confirm Cellular Phone Functionality"


Proceed to "Confirm Vehicle Headunit Functionality"


Proceed to "Entune Reset Procedure" in Operation Check


Navigation receiver assembly


Entune voice recognition is not possible (Voice recognition on the navigation system is normal)

Proceed to "Confirm Cellular Phone Functionality"


Proceed to "Confirm Vehicle Headunit Functionality"


Proceed to "Entune Reset Procedure" in Operation Check


Navigation receiver assembly


Poor sound quality of Entune system

Confirm that cellular phone handset volume is turned up

-

Confirm that adequate signal is maintained during driving

-

Proceed to "Confirm Cellular Phone Functionality"


Proceed to "Confirm Vehicle Headunit Functionality"


Proceed to "Entune Reset Procedure" in Operation Check


Navigation receiver assembly


Operation Check
OPERATION CHECK 1. CHECK NAVIGATION SYSTEM NORMAL CONDITION (a) If the symptom is applicable to any of the following, it is intended behavior, and not a malfunction. Symptom ...

Terminals Of Ecu
TERMINALS OF ECU 1. NAVIGATION RECEIVER ASSEMBLY (for 9 Speakers) Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified ...

Other materials about Toyota 4Runner:

Installation
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Downhill Assist Control Indicator Light does not Come ON
DESCRIPTION Even if the downhill assist control switch is pressed, the downhill assist control indicator light blinks and downhill assist control does not activate under the following conditions: The transfer is in H4. The brake system is malf ...

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