NAVIGATION SYSTEM (for DVD) PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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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 switch 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 running. | 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 "Stereo Component Amplifier Power Source Circuit" | ||
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | ||
| Proceed to "Speaker circuit" | ||
| Stereo component amplifier assembly | ||
| Navigation receiver assembly | ||
| Radio broadcast cannot be received or poor reception. | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | |
| Disc cannot be inserted/played or disc is ejected right after insertion. | Proceed to "Disc cannot be Inserted or is Ejected Right After Insertion" | |
| Disc cannot be ejected. | Proceed to "Disc cannot be Ejected" | |
| CD/DVD sound skips. | Proceed to "CD/DVD 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 "Stereo Component Amplifier Power Source Circuit" | ||
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | ||
| Proceed to "Speaker circuit" | ||
| Stereo component amplifier assembly | ||
| 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 |
|---|---|---|
| Map disc cannot be inserted. | Proceed to "Map Disc cannot be Inserted" | |
| Proceed to "Navigation Receiver Assembly Power Source Circuit" | ||
| Navigation receiver assembly | ||
| Map disc cannot be ejected. | Proceed to "Navigation Receiver Assembly Power Source Circuit" | |
| 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 is not updated. | Proceed to "Vehicle Position Mark is not Updated" | |
| Map disc | - | |
| Navigation receiver assembly | ||
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | |
| Map disc | - | |
| 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" | ||
| Map disc | - | |
| Stereo component amplifier assembly | ||
| Navigation receiver assembly | ||
| Map display is incomplete. | Proceed to "Map Display Incomplete" | |
| Map disc | - | |
| Navigation receiver assembly | ||
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | |
| Map disc | - | |
| 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) | - |
| Map disc | - | |
| 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" | |
| "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 |
|---|---|---|
| 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" | |
| Stereo component amplifier assembly | ||
| 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 |