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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Pressing PWR switch does not turn on system. | Proceed to "Pressing Power Switch does not Turn on System" | |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | ||
| Navigation receiver assembly | ||
| Black screen (No image appears on navigation/audio screen.) | Proceed to "Black Screen" | |
| Proceed to "Illumination Circuit" | ||
| Navigation receiver assembly | ||
| 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 | ||
| 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 | ||
| Panel switches do not function. | Proceed to "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| 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 "Steering Pad Switch Circuit" | ||
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | ||
| Navigation receiver assembly | ||
| Display panel does not open, tilt, or tilts improperly. | Proceed to "Display Panel does not Open, Tilt or Tilts Improperly" | |
| 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 | ||
| Navigation function switches can be operated while vehicle is driving. | Proceed to "Parking Brake Switch Circuit" | |
| Navigation receiver assembly |
| Symptom | Suspected Area | See page |
|---|---|---|
| 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 Multi-media Interface ECU" | ||
| Proceed to "Speaker circuit" | ||
| Navigation receiver assembly | ||
| Radio broadcast cannot be received or poor reception. | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | |
| CD cannot be inserted/played or CD is ejected right after insertion. | Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion" | |
| CD cannot be ejected. | Proceed to "CD cannot be Ejected" | |
| CD sound skips. | Proceed to "CD Sound Skips" | |
| Abnormal noise occurs. | Proceed to "Noise Occurs" | |
| Poor sound quality in all modes (low volume). | Proceed to "Poor Sound Quality in All Modes (Low Volume)" | |
| Proceed to "Speaker circuit" | ||
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU" | ||
| Navigation receiver assembly | ||
| 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 | ||
| ASL does not function. | Check that the ASL function is on | - |
| Navigation receiver assembly |
| Symptom | Suspected Area | See page |
|---|---|---|
| GPS mark is not displayed. | Proceed to "GPS Mark is not Displayed" | |
| Navigation antenna assembly | ||
| Navigation receiver assembly | ||
| Vehicle position mark deviates. | Proceed to "Vehicle Position Mark Deviates Greatly" | |
| 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. | Check if the GPS mark is displayed on the map screen. | - |
| Proceed to "Cursor or Map Rotates when Vehicle is Stopped" | ||
| Proceed to "Reverse Signal Circuit" | ||
| Vehicle position mark is not updated. | Check if the GPS mark is displayed on the map screen. | - |
| Proceed to "Vehicle Position Mark is not Updated" | ||
| Navigation receiver assembly | ||
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | |
| Navigation antenna assembly | ||
| Navigation receiver assembly | ||
| GPS mark is not displayed. | 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 "Speaker Circuit" | ||
| Navigation receiver assembly | ||
| Map display is incomplete. | Proceed to "Map Display Incomplete" | |
| Navigation receiver assembly | ||
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | |
| Navigation receiver assembly | ||
| Navigation ECU cannot record memory point registration or each item setting. | Proceed to "Check Hard Disk Drive" in Operation Check | |
| 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 ECU) | - |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| 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. | - |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| 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) | - |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| 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) | - |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| Voice menu screen is not displayed. | Proceed to "Steering Pad Switch Circuit" | |
| Navigation receiver assembly | ||
| Voice recognition is difficult. | Proceed to "Voice Recognition Difficulty" | |
| Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | ||
| Navigation receiver assembly | ||
| Voice is not recognized. | Proceed to "Voice is not Recognized" | |
| Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | ||
| Proceed to "Steering Pad Switch Circuit" | ||
| Navigation receiver assembly | ||
| Reverse signal does not change in vehicle signal check mode. | Proceed to "Reverse Signal Circuit" | |
| Parking brake switch signal does not change in vehicle signal check mode. | Proceed to "Parking Brake Switch Circuit" | |
| Navigation receiver assembly | ||
| "MIC" is not displayed on system check mode screen. | Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | |
| Navigation receiver assembly | ||
| "AUX" is not displayed on system check mode screen. | Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter" | |
| Navigation receiver assembly |
| Symptom | Suspected Area | See page |
|---|---|---|
| System cannot be operated by steering pad switch. | 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 |
| Symptom | Suspected Area | See page |
|---|---|---|
| Bluetooth inoperative. | Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | |
| Navigation receiver assembly | ||
| Cellular phone registration failure, phone directory transfer failure | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | |
| Cellular phone cannot send/receive. | Proceed to "Cellular Phone cannot Send/Receive" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Navigation receiver assembly | ||
| Cellular phone cannot call in a certain place. | Proceed to "Cannot Call in a Certain Place" | |
| The 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" | |
| Navigation receiver assembly | ||
| The 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" | |
| Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | ||
| Navigation receiver assembly |
| 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 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" | |
| 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 |
| Symptom | Suspected Area | See page |
|---|---|---|
| A message is displayed indicating that music cannot be played. | Proceed to "Audio Recorded to HDD cannot be Played" | |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| Audio recorded to HDD cannot be played. | Proceed to "Audio Recorded to HDD cannot be Played" | |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| A message is displayed indicating that HDD is unable to copy because of low temperature. | Start engine and increase cabin temperature (near navigation ECU) | - |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| Sound cannot be heard for all tracks only when using sound library. | Proceed to "Audio cannot be Recorded to HDD" | |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| CD tracks cannot be recorded. ("REC" switch is not displayed.) | Proceed to "Audio cannot be Recorded to HDD" | |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| CD tracks cannot be recorded. | Proceed to "Audio cannot be Recorded to HDD" | |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| Sound library items cannot be edited/deleted. | Proceed to "Cannot Edit or Delete Sound Library Items" | |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Navigation receiver assembly | ||
| Titles are not displayed for recorded songs. | Titles are not displayed when songs are recorded from a CD such as new album and that has not been recorded in the media database. | - |
| Title is displayed when CD is played but not displayed for songs that are recorded on HDD. | Proceed to "Correct Songs Information is not Displayed" | |
| Titles displayed when playing CD and titles recorded on HDD do not match. | Proceed to "Correct Songs Information is not Displayed" | |
| Song information on CD jacket and recorded song information do not match. | Proceed to "Correct Songs Information is not Displayed" |
| Symptom | Suspected Area | See page |
|---|---|---|
| USB audio system sound cannot be heard or sound quality is bad. (Stereo jack is used.) | Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Multi-media interface ECU" | |
| Proceed to "Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter" | ||
| No. 1 stereo jack adapter assembly | ||
| Multi-media interface ECU | ||
| Navigation receiver assembly | ||
| USB device or "iPod" is not recognized. | Proceed to "USB Audio System Recognition / Play Error" | |
| No. 1 stereo jack adapter assembly | ||
| Multi-media interface ECU | ||
| 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 | ||
| Multi-media interface ECU | ||
| 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 | ||
| Multi-media interface ECU |