Problem Symptoms Table
HINT:
- Before inspecting the suspected areas listed in the table below, check the fuse and relay.
- Before inspecting the suspected areas listed in the table below, check the DTCs.
- Methods used to verify the cause of the problem are listed in order of probability in the suspected area column.
DISPLAY FUNCTION
| Symptom | Suspected area |
|---|---|
| Pressing PWR switch does not turn on system. | 1. Proceed to "Pressing Power Switch does not Turn ON System" |
| 2. Multi-display power source circuit | |
| 3. AVC-LAN circuit | |
| 4. Multi-display | |
| Black screen (No image appears on navigation/audio screen). | 1. Proceed to "No Image Appears on Multi-display" |
| 2. Multi-display power source circuit | |
| 3. Illumination circuit | |
| 4. AVC-LAN circuit | |
| 5. Multi-display | |
| Illumination for panel switch does not come on with TAIL switch on. | 1. Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON" |
| 2. Illumination circuit | |
| 3. Multi-display | |
| Display does not dim (Night Screen) with TAIL switch on. | 1. Proceed to "Display does not DIM when Light Control Switch is Turned ON" |
| 2. Illumination circuit | |
| 3. Multi-display | |
| Power does not turn off (The screen remains on). | 1. Multi-display power source circuit |
| 2. Multi-display | |
| Panel switches do not function. | 1. Proceed to "Panel Switches do not Function" |
| 2. Steering pad switch circuit | |
| 3. Multi-display power source circuit | |
| 4. Multi-display | |
| Touch panel switch does not function. | 1. Proceed to "Touch Panel Switch does not Function" |
| 2. Steering pad switch circuit | |
| 3. Multi-display power source circuit | |
| 4. Multi-display | |
| Navigation screen is not displayed. | 1. Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" |
| 2. Map disc | |
| 3. Navigation ECU | |
| 4. Multi-display | |
| Navigation screen flicker or color distortion. | 1. Proceed to "Screen Flicker or Color Distortion" |
| 2. Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" | |
| 3. Navigation ECU | |
| 4. Multi-display | |
| DVD image cannot be displayed on multi-display. (Parking brake is on.) (*1) | 1. Proceed to "Display Signal Circuit between Multi-display and Radio Receiver |
| 2. Parking brake switch circuit | |
| 3. Radio Receiver | |
| 4. Multi-display | |
| Navigation function switches can be operated while vehicle is running. | Proceed to "VEHICLE SPEED SIGNAL CIRCUIT BETWEEN MULTI-DISPLAY AND COMBINATION METER " |
NAVIGATION FUNCTION
| Symptom | Suspected area |
|---|---|
| Map disc cannot be inserted. | 1. Proceed to "Map Disc cannot be Inserted" |
| 2. Navigation ECU power source circuit | |
| 3. Navigation ECU | |
| Map disc cannot be ejected. | 1. Proceed to "Map Disc cannot be Ejected" |
| 2. Navigation ECU power source circuit | |
| 3. Navigation ECU | |
| Vehicle position mark deviates greatly. | 1. Proceed to "Vehicle Position Mark Deviates Greatly" |
| 2. GPS antenna | |
| 3. Navigation ECU | |
| Cursor or map rotates when vehicle is stopped. | 1. Proceed to "Cursor or Map Rotates when Vehicle is Stopped" |
| 2. Navigation ECU | |
| Vehicle position mark is not updated. | 1. Proceed to "Vehicle Position Mark is not Updated" |
| 2. Map disc | |
| 3. Navigation ECU | |
| Current position display does not appear. | 1. Proceed to "Current Position Display does not Appear" |
| 2. Map disc | |
| 3. GPS antenna | |
| 4. Navigation ECU | |
| GPS Mark is not displayed. | 1. Proceed to "GPS Mark is not Displayed" |
| 2. GPS antenna | |
| 3. Navigation ECU | |
| Voice guidance does not function. | 1. Proceed to "Voice Guidance does not Function" |
| 2. Navigation voice circuit | |
| 3. Map disc | |
| 4. Navigation ECU | |
| 5. Stereo component amplifier | |
| Map display incomplete. | 1. Proceed to "Map Display Incomplete" |
| 2. Map disc | |
| 3. Navigation ECU | |
| Route cannot be calculated. | 1. Proceed to "Route cannot be Calculated" |
| 2. Map disc | |
| 3. Navigation ECU | |
| Voice recognition difficulty. | 1. Proceed to "Voice Recognition Difficulty" |
| 2. Navigation ECU | |
| Voice is not recognized. | 1. Proceed to "Voice is not Recognized" |
| 2. Proceed to "Microphone circuit between Overhead J/B and Multi-display" | |
| 3. Proceed to "Microphone circuit between Multi-display and Navigation ECU" | |
| 4. Steering pad switch circuit | |
| 5. Microphone | |
| 6. Microphone amplifier | |
| 7. Navigation ECU | |
| Speed signal does not change in the navigation check mode. | Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Multi-display" |
| Reverse signal does not change in the navigation check mode. | Proceed to "Reverse Signal Circuit" |
STEERING PAD SWITCH FUNCTION
| Symptom | Suspected area |
|---|---|
| The system cannot be operated by the steering pad switch. | 1. Steering pad switch circuit |
| 2. Radio receiver | |
| Illumination for steering pad switch does not come on with tail switch on. | 1. Illumination circuit |
| 2. Radio receiver |
BLUETOOTH FUNCTION
| Symptom | Suspected area |
|---|---|
| Cellular phone registration failure, phone directory transfer failure. | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" |
| Cellular phone cannot send/receive. | 1. Proceed to "Cellular Phone cannot Send/Receive" |
| 2. Steering pad switch circuit | |
| 3. Radio receiver | |
| Cannot call in a certain place. | Proceed to "Cannot call in a Certain Place" |
| The other callers voice cannot be heard, is too quiet, or distorted. | 1. Proceed to "The Other Callers Voice cannot be Heard, is too Quiet, or Distorted" |
| 2. Multi-display | |
| The other caller cannot heard your voice, or your voice is too quiet or distorted. | 1. Proceed to "The Other Caller cannot Heard Your Voice, or Your Voice is too Quiet or Distorted" |
| 2. Proceed to "Microphone circuit between Overhead J/B and Multi-display" | |
| 3. Microphone | |
| 4. Microphone amplifier | |
| 5. Multi-display |