Problem Symptoms Table
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 |
|---|---|---|
| Pressing PWR switch does not turn on system. | Proceed to "Pressing Power Switch does not Turn on System" | Refer to Pressing Power Switch does not Turn on System |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Black screen (No image appears on navigation/audio screen). | Proceed to "Black Screen" | Refer to Black Screen |
| Proceed to "Illumination Circuit" | Refer to Illumination Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Illumination for Panel Switch does not Come on with Tail Switch ON |
| Proceed to "Illumination Circuit" | Refer to Illumination Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Display does not Dim when Light Control Switch is Turned ON |
| Proceed to "Illumination Circuit" | Refer to Illumination Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Power does not turn off (The screen remains on). | Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit |
| Navigation receiver assembly | Refer to REMOVAL | |
| Panel switches do not function. | Proceed to "Panel Switches do not Function" | Refer to Panel Switches do not Function |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Touch panel switch does not function. | Proceed to "Touch Panel Switch does not Function" | Refer to Touch Panel Switch does not Function |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Display panel does not open, tilt or tilts improperly. | Proceed to "Display Panel does not Open, Tilt or Tilts Improperly" | Refer to Display Panel does not Open, Tilt or Tilts Improperly |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Screen is distorted. | Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit |
| Navigation receiver assembly | Refer to REMOVAL | |
| Screen flicker or color distortion. | Proceed to "Screen Flicker or Color Distortion" | Refer to Screen Flicker or Color Distortion |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Navigation function switches can be operated while vehicle is being driven. | Proceed to "Parking Brake Switch Circuit" | Refer to Parking Brake Switch Circuit |
| Navigation receiver assembly | Refer to REMOVAL |
AUDIO FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| No sound can be heard from speakers (audio is mute). | Proceed to "No Sound can be Heard from Speakers" | Refer to No Sound can be Heard from Speakers |
| Proceed to "Stereo Component Amplifier Power Source Circuit" | Refer to Stereo Component Amplifier Power Source Circuit | |
| Proceed to "Mute Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU" | Refer to Mute Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU | |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU" | Refer to Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU | |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier" | Refer to Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier | |
| Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier" | Refer to Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier | |
| Proceed to "Speaker circuit" | Refer to Speaker Circuit | |
| Stereo component amplifier assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Radio broadcast cannot be received or poor reception. | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | Refer 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" | Refer to CD cannot be Inserted / Played or CD is Ejected Right After Insertion |
| CD cannot be ejected. | Proceed to "CD cannot be Ejected" | Refer to CD cannot be Ejected |
| CD sound skips. | Proceed to "CD Sound Skips" | Refer to CD Sound Skips |
| Abnormal noise occurs. | Proceed to "Noise Occurs" | Refer to Noise Occurs |
| Poor sound quality in all modes (low volume). | Proceed to "Poor Sound Quality in All Modes (Low Volume)" | Refer to Poor Sound Quality in All Modes (Low Volume) |
| Proceed to "Speaker circuit" | Refer to Speaker Circuit | |
| Proceed to "Mute Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU" | Refer to Mute Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU | |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU" | Refer to Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU | |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier" | Refer to Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier | |
| Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier" | Refer to Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier | |
| Proceed to "Stereo Component Amplifier Power Source Circuit" | Refer to Stereo Component Amplifier Power Source Circuit | |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Stereo component amplifier assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter |
| No. 1 stereo jack adapter assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| ASL does not function. | Check that the ASL function is ON | - |
| Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter" | Refer to Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter |
NAVIGATION FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Map disc cannot be inserted. | Proceed to "Map Disc cannot be Inserted" | Refer to Map Disc cannot be Inserted |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Map disc cannot be ejected. | Proceed to "Navigation Receiver Assembly Power Source Circuit" | Refer to Navigation Receiver Assembly Power Source Circuit |
| Navigation receiver assembly | Refer to REMOVAL | |
| Vehicle position mark deviates. | Proceed to "Vehicle Position Mark Deviates Greatly" | Refer to Vehicle Position Mark Deviates Greatly |
| Navigation antenna assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Cursor or map rotates when vehicle is stopped. | Proceed to "Cursor or Map Rotates When Vehicle is Stopped" | Refer to Cursor or Map Rotates when Vehicle Stopped |
| Navigation receiver assembly | Refer to REMOVAL | |
| Vehicle position mark is not updated. | Proceed to "Vehicle Position Mark is not Updated" | Refer to Vehicle Position Mark is not Updated |
| Map disc | - | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | Refer to Current Position Display does not Appear |
| Map disc | - | |
| Navigation antenna assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| GPS mark is not displayed. | Proceed to "GPS Mark is not Displayed" | Refer to GPS Mark is not Displayed |
| Navigation antenna assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Voice guidance does not function. | Proceed to "Voice Guidance does not Function" | Refer to Voice Guidance does not Function |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier" | Refer to Mute Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier | |
| Proceed to "Navigation Voice Circuit" | Refer to Navigation Voice Circuit | |
| Proceed to "Speaker Circuit" | Refer to Speaker Circuit | |
| Map disc | - | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Stereo component amplifier assembly | Refer to REMOVAL | |
| Map display is incomplete. | Proceed to "Map Display Incomplete" | Refer to Map Display Incomplete |
| Map disc | - | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | Refer to Route cannot be Calculated |
| Map disc | - | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Voice recognition is difficult. | Proceed to "Voice Recognition Difficulty" | Refer to Voice Recognition Difficulty |
| Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | Refer to Microphone Circuit between Microphone and Navigation Receiver Assembly | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Voice is not recognized. | Proceed to "Voice is not Recognized" | Refer to Voice is not Recognized |
| Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | Refer to Microphone Circuit between Microphone and Navigation Receiver Assembly | |
| Proceed to "Steering Pad switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Reverse signal does not change in the vehicle signal check mode. | Proceed to "Reverse Signal Circuit" | Refer to Reverse Signal Circuit |
| Parking brake switch signal does not change in the vehicle signal check mode. | Proceed to "Parking Brake Switch Circuit" | Refer to Parking Brake Switch Circuit |
| "MIC" is not displayed on system check mode screen. | Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | Refer to Microphone Circuit between Microphone and Navigation Receiver Assembly |
| Navigation receiver assembly | Refer to REMOVAL | |
| "AUX" is not displayed on system check mode screen. | Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter" | Refer to Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter |
| No. 1 stereo jack adapter assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL |
STEERING PAD SWITCH FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| The system cannot be operated by the steering pad switch. | Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit |
| Navigation receiver assembly | Refer to REMOVAL | |
| Illumination for steering pad switch does not come on with tail switch on. | Proceed to "Illumination Circuit" | Refer to Illumination Circuit |
| Navigation receiver assembly | Refer to REMOVAL |
"BLUETOOTH" HANDS-FREE FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Bluetooth inoperative. | Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly" | Refer to Microphone Circuit between Microphone and Navigation Receiver Assembly |
| Navigation receiver assembly | Refer to REMOVAL | |
| Cellular phone registration failure, phone directory transfer failure. | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | Refer to Cellular Phone Registration Failure, Phone Directory Transfer Failure |
| Cellular phone cannot send/receive. | Proceed to "Cellular Phone cannot Send / Receive" | Refer to Cellular Phone cannot Send/Receive |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Cannot call in a certain place. | Proceed to "Cannot Call in a Certain Place" | Refer 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 Quiet, or Distorted" | Refer to The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted |
| Proceed to "Navigation Voice Circuit" | Refer to Navigation Voice Circuit | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Stereo component amplifier assembly | Refer to REMOVAL | |
| 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" | Refer 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" | Refer to Microphone Circuit between Microphone and Navigation Receiver Assembly | |
| Navigation receiver assembly | Refer to REMOVAL |
"BLUETOOTH" AUDIO FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Portable player cannot be registered. | Proceed to "Portable Player cannot be Registered" | Refer to Portable Player cannot be Registered |
| Navigation receiver assembly | Refer to REMOVAL | |
| Portable player cannot be connected manually/automatically. | Proceed to "Portable Player cannot be Registered" | Refer to Portable Player cannot be Registered |
| Proceed to "Portable Player cannot be Connected Manually/Automatically" | Refer to Portable Player cannot be Connected Manually/Automatically | |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Portable Player cannot be Registered |
| Proceed to "Portable Player cannot be Connected Manually/Automatically" | Refer to Portable Player cannot be Connected Manually/Automatically | |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Sound of Portable Player cannot be Heard from Speakers or Sound is Low |
| Navigation receiver assembly | Refer to REMOVAL | |
| Portable player does not play even after "Bluetooth" audio mode is selected. | Proceed to "Does not Play even after Bluetooth Audio Mode is Selected" | Refer to Does not Play even after Bluetooth Audio Mode is Selected |
| Navigation receiver assembly | Refer to REMOVAL | |
| Portable player does not play. | Proceed to "Does not Play even after Bluetooth Audio Mode is Selected" | Refer to Does not Play even after Bluetooth Audio Mode is Selected |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device |
| Navigation receiver assembly | Refer to REMOVAL | |
| 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" | Refer to Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device |
| Navigation receiver assembly | Refer to REMOVAL | |
| "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" | Refer to Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device |
| Navigation receiver assembly | Refer to REMOVAL | |
| Portable player cannot pause, select file, fast forward, fast rewind, random play or scan. | Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device" | Refer to Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device |
| Navigation receiver assembly | Refer to REMOVAL | |
| Noise occurs or sound skips when portable player plays. | Proceed to "Noise Occurs or Sound Skips when Portable Player Plays" | Refer to Noise Occurs or Sound Skips when Portable Player Plays |
| Navigation receiver assembly | Refer to REMOVAL | |
| Registered device cannot be deleted. | Proceed to "Registered Device cannot be Deleted" | Refer to Registered Device cannot be Deleted |
| Navigation receiver assembly | Refer to REMOVAL |
SDARS SYSTEM FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Satellite radio sound cannot be heard or sound quality is bad. | Proceed to "Sound Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU" | Refer to Sound Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU |
| Proceed to "Mute Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU" | Refer to Mute Signal Circuit between Stereo Component Tuner Assembly and Multi-media Interface ECU | |
| Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU" | Refer to Sound Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU | |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU" | Refer to Mute Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Multi-media interface ECU | Refer to REMOVAL | |
| Stereo component tuner assembly | Refer to REMOVAL | |
| Satellite radio broadcast cannot be received or reception is bad | Proceed to "Satellite Radio Broadcast cannot be Received" | Refer to Satellite Radio Broadcast cannot be Received |
| Stereo component tuner assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Satellite radio cannot receive pay type broadcasts | Proceed to "Satellite Radio Broadcast cannot be Received" | Refer to Satellite Radio Broadcast cannot be Received |
| Stereo component tuner assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Satellite radio broadcast cannot be selected or after selecting broadcast, broadcast cannot be added into memory | Proceed to "Satellite Radio Broadcast cannot be Received" | Refer 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" | Refer to Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory | |
| Stereo component tuner assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| Traffic information is not displayed | Proceed to "Traffic Information is not Displayed" | Refer to Traffic Information is not Displayed |
| Stereo component tuner assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| "XM Nav Traffic" mark is not displayed | Proceed to "Traffic Information is not Displayed" | Refer to Traffic Information is not Displayed |
| Stereo component tuner assembly | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL |
USB AUDIO SYSTEM FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| USB audio system sound cannot be heard or sound quality is bad. (Stereo jack is used.) | Multi-media interface ECU power source circuit | Refer to Multi-media Interface ECU Power Source Circuit |
| Proceed to "Sound Signal Circuit between Navigation Receiver Assembly and Multi-media interface ECU" | Refer to Sound Signal Circuit between Navigation Receiver Assembly and Multi-media Interface ECU | |
| Proceed to "Mute Signal Circuit between Navigation Receiver Assembly and Multi-media interface ECU" | Refer to Mute 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 assembly" | Refer to Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter | |
| No. 1 stereo jack adapter assembly | Refer to REMOVAL | |
| Multi-media interface ECU | Refer to REMOVAL | |
| Navigation receiver assembly | Refer to REMOVAL | |
| USB device or "iPod" is not recognized. | Proceed to "USB Audio System Recognition / Play Error" | Refer to USB Audio System Recognition/Play Error |
| No. 1 stereo jack adapter assembly | Refer to REMOVAL | |
| Multi-media interface ECU | Refer to REMOVAL | |
| Track information such as track, artist and album names are not displayed. | Proceed to "USB Audio System Recognition / Play Error" | Refer to USB Audio System Recognition/Play Error |
| No. 1 stereo jack adapter assembly | Refer to REMOVAL | |
| Multi-media interface ECU | Refer to REMOVAL | |
| USB device or "iPod" is recognized but cannot play nor play in a sorted order. | Proceed to "USB Audio System Recognition / Play Error" | Refer to USB Audio System Recognition/Play Error |
| No. 1 stereo jack adapter assembly | Refer to REMOVAL | |
| Multi-media interface ECU | Refer to REMOVAL |