RM3660EC _56 Audio / Visual / Telematics _080752 NAVIGATION / MULTI INFO DISPLAY _0528911 NAVIGATION SYSTEM(w/o RST Switch (except 10.25 Inch Display)) T

NAVIGATION / MULTI INFO DISPLAY  NAVIGATION SYSTEM(w/o RST Switch (except 10.25 Inch Display))  PROBLEM SYMPTOMS TABLE  


General Function
Symptom Suspected Area Link
Each time the ignition switch is turned to ON, the loading window is displayed. Inspect the auxiliary battery. -
Inspect the wire harness and connector (terminals +B1 and ACC1 of the navigation receiver assembly). Click here
Replace the navigation receiver assembly. Click here
A message is displayed to inform the driver that the program cannot be read, and the system cannot be operated. Replace the navigation receiver assembly. Click here
Vehicle customization cannot be performed using the setting/editing display of the multi-display (customization is possible using the GTS). Turn the ignition switch from off to ACC, then try again. -
Replace the navigation receiver assembly. Click here

Display Function
Symptom Suspected Area Link
No image is displayed when the ignition switch is ACC (black screen). If the screen is set to off, change the setting to on. -
Replace the navigation receiver assembly. Click here
White or blue screen is displayed when the ignition switch is turned to ACC. Replace the navigation receiver assembly. Click here
Color distortion occurs in all of the displays. Check the settings of the display quality adjustment screen (check that each setting is centered). -
Replace the navigation receiver assembly. Click here
No air conditioning control screens are displayed. Check that the air conditioning system is operating correctly. for Gasoline Model (NR Series) with Manual Air Conditioning System for Electrical Control Type:Click here
for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type:Click here

Audio Function
Symptom Suspected Area Link
When ASL (Auto Sound Levelizer) is operating and audio is being output, the sound volume does not change even when driving on a highway, etc. Explain to the customer that if the sound volume is set to high, it is hard to notice the effect of ASL. -
Check the settings of the sound quality adjustment screen (check that the ASL function on sound setting display 2 is set to on). -
Check the settings of the sound quality adjustment screen (check that each setting is centered). -
Function inspection/calibration - vehicle signal inspection (SPD signal) Click here
Inspect the wire harness and connector (navigation receiver assembly (SPD) - combination meter assembly (+S) terminal). -
Proceed to the troubleshooting procedure of the meter & gauge system (vehicle speed signal circuit) Click here
Replace the navigation receiver assembly. Click here
In all modes, sound from all speakers cannot be heard, sound quality is poor in all modes (the displays and switch operations are correct) Inspect the wire harness and connector (telematics transceiver (MUTE) - navigation receiver assembly (TMUT) terminal). -
Inspect the telematics transceiver (MUTE) terminal. Click here
Replace the navigation receiver assembly. Click here
Sound from a specific speaker cannot be heard, sound quality is poor or sound is low in all modes Check the settings of the sound quality adjustment screen (check that each setting is centered). -
Check the settings of the sound quality adjustment screen (check that the ASL function on sound setting display 2 is set to off). -
Proceed to "Speaker Circuit" Click here
In all modes, noise occurs in all of the speakers. Proceed to "In all modes, noise occurs in all of the speakers" Click here

Night Illumination Function
Symptom Suspected Area Link
Even though headlights are turned on, the display is not dimmed. Check that the interior lighting system is operating correctly. Click here
Proceed to "Even Though Headlights are Turned On, Head-Unit does not Dim the Display" Click here
The night illumination function of the steering pad switch does not function (audio operation on the steering pad switch is normal). Inspect the steering pad switch assembly (IL+2, ILL) terminal. Click here
Inspect the spiral cable sub-assembly (IL+2) terminal. Click here
Inspect the wire harness and connector (spiral cable sub-assembly with sensor (IL+2) terminal). -

Switch Function
Symptom Suspected Area Link
System does not respond to operation of the touch screen. Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary. -
Function inspection/calibration - panel & steering switch function Click here
Replace the navigation receiver assembly. Click here
Audio system operation using the steering wheel switches does not function (sound output is normal and the operation of the panel switch is correct). Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary. -
Function inspection/calibration - panel & steering switch function Click here
Inspect the steering pad switch assembly (AU1, AU2, EAU) terminal. Click here
Inspect the spiral cable sub-assembly (AU1, AU2, EAU) terminal. Click here
Inspect the wire harness and connector (spiral cable sub-assembly - navigation receiver assembly terminal). -
Inspect the navigation receiver assembly (SWG) terminal. Click here
Replace the navigation receiver assembly. Click here

Navigation Function
Symptom Suspected Area Link
Vehicle position mark deviates from correct position and does not return to correct position Confirm again after removing all additional devices which use radio waves -
Move the vehicle (to a place where reception is good) -
Function inspection/calibration - navigation system inspection Click here
Check that the telematics system is operating correctly. Click here
Replace the navigation receiver assembly. Click here
Vehicle position mark or map rotates randomly Check that the gyro has been initialized (Explain to the customer that when the ignition switch is turned off and the vehicle is turned on a parking turntable, etc., the current vehicle position mark may not indicate the correct direction, however it returns to normal after driving the vehicle for a while) -
Replace the navigation receiver assembly. Click here
Direction of travel and vehicle position mark direction are opposite Check after removing all additional devices which use radio waves. -
Check that the gyro has been initialized (Explain to the customer that when the ignition switch is turned off and the vehicle is turned on a parking turntable, etc., the current vehicle position mark may not indicate the correct direction, however it returns to normal after driving the vehicle for a while). -
Function inspection/calibration - vehicle signal inspection (REV signal) Click here
Replace the navigation receiver assembly. Click here
Vehicle position mark moves ahead or falls behind, or deviates from and returns to correct position repeatedly. Confirm after removing all additional devices which use radio waves. -
Move the vehicle (to a place where reception is good). -
Function inspection/calibration - navigation system inspection Click here
Perform sensor learning (at a place where GNSS signals can be received, drive the vehicle clockwise and counterclockwise in at least a 200 meter square 2 times or more.) -
Function inspection/calibration - vehicle signal inspection (SPD signal) Click here
Inspect the wire harness and connector (navigation receiver assembly (SPD) - combination meter assembly (+S) terminal). -
Proceed to the troubleshooting procedure of the meter & gauge system (vehicle speed signal circuit) Click here
Check that the telematics system is operating correctly. Click here
Replace the navigation receiver assembly. Click here
Route voice guidance is not output or volume is low (audio guidance is normal) Check that the audio function is operating correctly -
Check the settings of the navigation voice guidance. Click here
Replace the navigation receiver assembly. Click here
Some areas of the map are not displayed. Explain to the customer that area near the border of the stored area of the urban map is not displayed. -
Replace the navigation receiver assembly. Click here
Route cannot be calculated Select another route and check if the route distance calculation cannot be performed. -
Check if there are roads that are not connected between the starting point and the destination. -
Check if the route contains a sea crossing and there is a ferry route between the starting point and the destination. -
Check that the destination is not excessively close the starting point. -
Replace the navigation receiver assembly. Click here
Memory points cannot be registered and maintenance items cannot be set using the information screen. Replace the navigation receiver assembly. Click here
Memory points have been cleared. Replace the navigation receiver assembly. Click here
A message indicating to wait for a while because of low temperature is displayed. Start the SFI system and wait until the interior temperature increases. -
Replace the navigation receiver assembly. Click here
A message is displayed because map data cannot be read, and current position screen is not displayed. Replace the navigation receiver assembly. Click here
Map screen turns white or blue. (GNSS receiving status is displayed normally, and switches and own vehicle position ark are also displayed normally.) Set the map scale to the maximum value. -
Replace the navigation receiver assembly. Click here

Radio Function
Symptom Suspected Area Link
Noise occurs only for radio Proceed to "Noise occurs only for radio" Click here
Radio wave reception failure (poor radio wave reception) Proceed to "Radio wave reception failure (poor radio wave reception)" Click here
Radio can be received, but broadcasting station name is not displayed When the broadcasting station name has not been recorded such as when the broadcasting station is newly established, etc., it will not be displayed -
When the radio wave reception is poor, it may not be displayed -
Replace the navigation receiver assembly. Click here

Wi-Fi Function
Symptom Suspected Area Link
Cannot Establish Wi-Fi Connection Proceed to "Wi-Fi Connection History" Click here

USB Function
Symptom Suspected Area Link
Sound cannot be heard or sound quality is poor only when playing a USB storage device or "iPod". Proceed to "Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage Device or "iPod"" Click here
USB storage device or "iPod" cannot be detected or played. Proceed to "USB Audio System Recognition/Play Error" Click here
Track information such as track number, track name, elapsed time and playlist is not displayed. Proceed to "USB Audio System Recognition/Play Error" Click here
Although a USB storage device or "iPod" can be detected, the track cannot be played or cannot be played in the sorted order. Proceed to "USB Audio System Recognition/Play Error" Click here
When "iPod" is replaying, cover art cannot be displayed. Check that cover art settings are set to be displayed. -
Replace the navigation receiver assembly. Click here
When playing back from a "iPod", repeat cannot be turned off Check the device with which the malfunction occurs using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here
USB storage device or "iPod" cannot be charged. Proceed to "USB Audio System Recognition/Play Error" Click here
Screen is distorted or not displayed only when using the USB storage device. Check using other media or check the media with which the malfunction occurs using another vehicle of the same type. -
Replace the No. 1 stereo jack adapter assembly. Click here
Replace the navigation receiver assembly. Click here
The display color distortion occurs only when playing a USB storage device (normal for other types). Check the settings of the display quality adjustment screen (check that each setting is centered). -
Check the device with which the malfunction occurs using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here

Vehicle Information
Symptom Suspected Area Link
The trip information is not displayed or updated. Turn the ignition switch to ON (IG), and check again. -
Check that the EFI system is operating correctly. -
Check that the electronically controlled brake system is operating correctly. -
Replace the navigation receiver assembly. Click here
The drivable distance is not displayed on the trip information display. Turn the ignition switch to ON (IG), and check again. -
Replace the navigation receiver assembly. Click here
The fuel consumption history information is not displayed or updated. Turn the ignition switch to ON (IG), and check again. -
Check that the meter and gauge system is operating correctly. Click here
Replace the navigation receiver assembly. Click here

Voice Recognition Function
Symptom Suspected Area Link
When the voice recognition switch is pressed, a short beep is not output and the voice recognition system does not start Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary -
Function inspection/calibration - panel & steering switch function Click here
Inspect the steering pad switch assembly. Click here
Inspect the spiral cable sub-assembly. Click here
Inspect the wire harness and connector (spiral cable sub-assembly - navigation receiver assembly terminal). -
Replace the navigation receiver assembly. Click here
The voice recognition system starts but voice cannot be recognized properly. Check that the Telematics system is operating correctly Click here
Check that the microphone sound holes of the telephone microphone assembly are not blocked -
Confirm the installation condition of the telephone microphone assembly -
Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start." Click here
Proceed to "Microphone Circuit" Click here
Voice recognition for vehicle operations is not possible Check service information (VUI) Click here
Replace the navigation receiver assembly. Click here

Bluetooth Hands-free Function
Symptom Suspected Area Link
"Bluetooth" is inoperative (in-vehicle device cannot be recognized by the cellular phone) Proceed to "Cellular Phone Inspection" Click here
Replace the navigation receiver assembly Click here
"Bluetooth" compatible cellular phone cannot be registered Proceed to "Cellular Phone Registration Failure" Click here
Proceed to ""Bluetooth" Connection History" Click here
"Bluetooth" compatible cellular phone cannot be registered Check that another cellular phone is not already connected as a hands-free device -
Bring the cellular phone near the in-vehicle device and reconnect it -
Proceed to "Cellular Phone Inspection" Click here
Proceed to "'Bluetooth' Connection History" Click here
Replace the navigation receiver assembly Click here
"Bluetooth" compatible cellular phone cannot be connected automatically (can be connected manually) Check that the setting "Use for Phone" is set to on on the in-vehicle device registration screen -
Replace the navigation receiver assembly Click here
2 "Bluetooth" compatible cellular phones cannot connect at the same time Check that the sign-in completes after opening the My Settings (user profile) screen -
Check that another cellular phone is not already connected as a hands-free device -
Move the main cellular phone and sub-cellular phone close to the in-vehicle device and connect again -
Proceed to "Cellular Phone Inspection" Click here
Proceed to "'Bluetooth' Connection History" Click here
Replace the navigation receiver assembly Click here
Ringtone of a "Bluetooth" compatible cellular phone cannot be heard Check that mute of the cellular phone is off -
Adjust the sound volume of the cellular phone, and try again -
Proceed to "Cellular Phone Inspection" Click here
Replace the navigation receiver assembly Click here
"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" Click here
Proceed to "'Bluetooth' Connection History" Click here
Replace the navigation receiver assembly Click here
Bring the cellular phone near the in-vehicle device and check if it is reconnected Check that the sign-in completes after opening the My Settings (user profile) screen -
Proceed to "Cellular Phone Registration Failure" Click here
Message that prompts to check the cellular phone is displayed Bring the cellular phone near the in-vehicle device and reconnect it -
Proceed to "Cellular Phone Inspection" Click here
Replace the navigation receiver assembly Click here
Phonebook data cannot be transferred Check that the sync contact 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 application on a cellular phone is operating -
If using "Bluetooth" audio function, cancel the "Bluetooth" audio player connection and check the operation -
Transfer phonebook data manually -
Proceed to "Cellular Phone Inspection" Click here
Replace the navigation receiver assembly Click here
Phonebook data is cleared Check that the phonebook data automatic transfer has been completed -
Replace the navigation receiver assembly Click here
Phonebook data cannot be edited Check if the in-vehicle device phonebook data automatic transfer setting is set to "OFF" -
Replace the navigation receiver assembly Click here
All the transferred phonebook data is sorted to "Other" -
Check that no application on a cellular phone is operating -
Check that phonebook data in the cellular phone is not stored to the SIM card -
Proceed to "Cellular Phone Inspection" Click here
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 cellular phone is connected to the vehicle via "Bluetooth" and operate the in-vehicle device again -
Check that the cellular phone can make outgoing/incoming calls properly when not connected via "Bluetooth" -
Check if a call confirmation message is displayed when attempting to call -
Proceed to "Cellular Phone Inspection" Click here
Proceed to "'Bluetooth' Connection History" Click here
Replace the navigation receiver assembly Click here
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) -
Function inspection/calibration - hands-free sound quality settings Click here
Make a call with the cellular phone disconnected from "Bluetooth" and check that other callers voice can be heard clearly -
Check that audio is correctly output for the radio -
Replace the navigation receiver assembly Click here
Other caller's voice cannot be heard Check that audio is correctly output for the radio -
Make a call with the cellular phone disconnected from "Bluetooth" and check that other callers voice can be heard clearly -
Using the cellular phone setting display, confirm that the audio output device is registered to the in-vehicle device. -
Check that reception voice volume is not set to minimum. -
Replace the navigation receiver assembly Click here
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). -
Function inspection/calibration - hands-free sound quality settings Click here
If any additional devices are installed, turn on/off the power switch and check whether noise occurs. -
Turn the ignition switch from ACC to off for a few times at a certain interval and check the sound volume of the calls. -
Using another cellular phone with another cellular phone carrier, check the sound volume of the calls a few times at a certain interval. -
Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start." Click here
Proceed to "Microphone Circuit" Click here
Other caller cannot hear your voice When talking on the cellular phone, check that the mute button is not pressed. -
Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start." Click here
Proceed to "Microphone Circuit" Click here
Sound output too low (other caller cannot hear your voice at an appropriate volume level) Turn the ignition switch from ACC to off a few times at a certain interval and check the sound volume of the calls. -
Using another cellular phone with another cellular phone carrier, check the sound volume of the calls a few times at a certain interval. -
Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start." Click here
Proceed to "Microphone Circuit" Click here
The telephone button on the steering pad switch cannot be operated but the displayed telephone button can be operated. Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary -
Check that the voice recognition switch on the steering pad switch can be operated. If it cannot be operated, proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start" -
Inspect the steering pad switch assembly. Click here

"Bluetooth" Audio Function
Symptom Suspected Area Link
"Bluetooth" portable audio player cannot be detected Check if the portable audio player is not connected to the in-vehicle device via "Android Auto". -
Confirm that the portable audio player is "Bluetooth" compatible. -
Check that the portable audio player is being connected to the in-vehicle device via "Bluetooth" using the correct procedure. -
Check the portable audio player that the malfunction occurred for using another vehicle of the same type. -
Check after removing all additional devices which use radio waves. -
Replace the navigation receiver assembly. Click here
Portable audio player cannot be connected manually/automatically. Confirm that the portable audio player is "Bluetooth" compatible. -
Check that the portable audio player is being connected to the in-vehicle device via "Bluetooth" using the correct procedure. -
Check that the "Bluetooth" audio connection setting of the "Bluetooth" portable audio player is set to on. -
Select the customers portable audio player on the device registration screen of the in-vehicle device and check that the "Use for Media" setting is set to on -
Check that the portable audio player is not in standby/sleep mode. -
Check that the portable audio player is not being connected to another device via "Bluetooth". -
Check the portable audio player that the malfunction occurred for using another vehicle of the same type. -
Confirm after removing all additional devices which use radio waves. -
Replace the navigation receiver assembly. Click here
Cellular phone with portable audio player function is connected via "Bluetooth" but cannot be detected as a "Bluetooth" compatible device. Check if the portable audio player is not connected to the in-vehicle device via "Android Auto". -
Confirm that the cellular phone with portable audio player function is "Bluetooth" compatible. -
Check that the cellular phone with portable audio player function is being connected to the in-vehicle device via "Bluetooth" using the correct procedure -
Check the cellular phone with portable audio player function using another vehicle of the same type. -
Confirm after removing all additional devices which use radio waves. -
Replace the navigation receiver assembly Click here
Portable audio player automatically starts. Check that the cellular phone with portable audio player function is being connected to the in-vehicle device via "Bluetooth" using the correct procedure. -
Check that "Use for media" is set to off on the in-vehicle device -
Check the cellular phone with portable audio player function using another vehicle of the same type. -
Sound from portable audio player cannot be heard, sound is low or sound quality is poor Place the portable audio player to an appropriate position. -
Check that the portable audio player is on and that the sound volume is not set to zero and mute is off -
Confirm that use of Wi-Fi connection is set to off. If Bluetooth and Wi-Fi devices are connected at the same time, depending on the specification of each device, one of them will be prioritized to output its audio. -
Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly Click here
Sound from portable audio player is interrupted or noise occurs Put the portable audio player in an appropriate location. -
Confirm that Wi-Fi is set to off. If Bluetooth and Wi-Fi devices operate at the same time, the connection may be disconnected due to wave interference (the 2.4 GHz frequency band will be congested, etc.)). -
Check the portable audio player using another vehicle of the same type. -
Confirm after removing all additional devices which use radio waves. -
Replace the navigation receiver assembly. Click here
Portable player does not play even after "Bluetooth" audio mode is selected. Check that the portable audio player is operating correctly. -
Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here
Track information such as track number, track name, elapsed play time and playlist is not displayed or the displayed contents is not correct. Confirm that the cellular phone with portable audio player function is "Bluetooth" compatible. -
Check that the track information is displayed on the portable audio player. -
Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here
Operation switches for portable player such as play, pause, repeat are not displayed. Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here
Portable player cannot pause, skip, fast forward, fast rewind, play at random, repeat Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here
Registered device cannot be deleted. Check that the portable audio player is being cleared from the in-vehicle device using the correct procedure. -
Replace the navigation receiver assembly Click here
Track information is not listed or the displayed contents are not correct. Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here
Repeat cannot be set to off Check the portable audio player using another vehicle of the same type. -
Replace the navigation receiver assembly. Click here