Problem Symptoms Table
Display function
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected area | See |
|---|---|---|
| Pressing power switch does not turn on system. | 1. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| 2. AVC-LAN circuit | AVC-LAN Circuit | |
| 3. Multi-display | - | |
| No image appears on multi-display. | 1. Proceed to "No image Appears on Multi-display" | NO IMAGE APPEARS ON MULTI-DISPLAY |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 3. Illumination circuit | ILLUMINATION CIRCUIT | |
| 4. AVC-LAN circuit | 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" | ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON |
| 2. Illumination circuit | ILLUMINATION CIRCUIT | |
| 3. Multi-display | - | |
| Display does not dim when light control switch is turn on. | 1. Proceed to "Display does not DIM when Light Control Switch is Turn ON" | DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON |
| 2. Illumination circuit | ILLUMINATION CIRCUIT | |
| 3. Multi-display | - | |
| Power does not turn off (The screen remains on). | 1. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| 2. Multi-display | - | |
| Panel switches do not function. | 1. Proceed to "Panel Switches do not Function" | PANEL SWITCHES DO NOT FUNCTION |
| 2. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| 3. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 4. Multi-display | - | |
| Touch panel switch does not function. | 1. Proceed to "Touch Panel Switch does not Function" | TOUCH PANEL SWITCH DOES NOT FUNCTION |
| 2. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| 3. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 4. Multi-display | - | |
| Navigation screen is not displayed. | 1. Display signal circuit between navigation ECU and multi-display | 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" | SCREEN FLICKER OR COLOR DISTORTION |
| 2. Display signal circuit between navigation ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY | |
| 3. Navigation ECU | - | |
| 4. Multi-display | - | |
| Navigation function switches can be operated while vehicle is running. | Vehicle speed signal circuit between multi-display and combination meter | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND COMBINATION METER |
Navigation function
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected area | See |
|---|---|---|
| Map disc cannot be inserted. | 1. Proceed to "Map Disc cannot be inserted" | MAP DISC CANNOT BE INSERTED |
| 2. Navigation ECU power source circuit | NAVIGATION ECU COMMUNICATION ERROR | |
| 3. Navigation ECU | - | |
| Map disc cannot be ejected. | 1. Proceed to "Map Disc cannot be Ejected" | MAP DISC CANNOT BE EJECTED |
| 2. Navigation ECU power source circuit | NAVIGATION ECU COMMUNICATION ERROR | |
| 3. Navigation ECU | - | |
| Vehicle position mark deviates greatly. | 1. Proceed to "Vehicle Position Mark Deviates Greatly" | 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" | CURSOR OR MAP ROTATES WHEN VEHICLE STOPPED |
| 2. Navigation ECU | - | |
| Vehicle position mark is not updated. | 1. Proceed to "Vehicle Position Mark is not Updated" | VEHICLE POSITION MARK DEVIATES GREATLY |
| 2. Map disc | - | |
| 3. Navigation ECU | - | |
| Current position display does not appear. | 1. Proceed to "Current Position Display does not Appear" | 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" | GPS MARK IS NOT DISPLAYED |
| 2. GPS antenna | - | |
| 3. Navigation ECU | - | |
| Voice guidance does not function. | 1. Proceed to "Voice Guidance does not Function" | VOICE GUIDANCE DOES NOT FUNCTION |
| 2. Navigation voice speaker circuit | NAVIGATION VOICE SPEAKER CIRCUIT | |
| 3. Map disc | - | |
| 4. Navigation ECU | - | |
| 5. Stereo component amplifier | - | |
| Map display incomplete. | 1. Proceed to "Map Display Incomplete" | MAP DISPLAY INCOMPLETE |
| 2. Map disc | - | |
| 3. Navigation ECU | - | |
| Route cannot be calculated. | 1. Proceed to "Route cannot be Calculated" | ROUTE CANNOT BE CALCULATED |
| 2. Map disc | - | |
| 3. Navigation ECU | - | |
| Voice recognition difficulty. | 1. Proceed to "Voice Recognition Difficulty" | VOICE RECOGNITION DIFFICULTY |
| 2. Navigation ECU | - | |
| Voice is not recognized. | 1. Proceed to "Voice is not Recognized" | VOICE IS NOT RECOGNIZED |
| 2. Microphone circuit between overhead J/B and multi-display | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| 3. Microphone circuit between multi-display and navigation ECU | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| 4. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| 5. Microphone | - | |
| 6. Microphone amplifier | - | |
| 7. Navigation ECU | - | |
| Speed signal does not change in the navigation check mode. | Vehicle speed signal circuit between navigation ECU and combination meter | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND COMBINATION METER |
| Reverse signal does not change in the navigation check mode. | Reverse Signal Circuit | REVERSE SIGNAL CIRCUIT |
Steering pad switch function
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected area | See |
|---|---|---|
| The system cannot be operated by the steering pad switch. | 1. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| 2. Radio receiver | - | |
| 3. Air conditioning amplifier | - | |
| Illumination for steering pad switch does not come on with tail switch on. | 1. Illumination circuit | ILLUMINATION CIRCUIT |
| 2. Radio receiver | - | |
| 3. Air conditioning amplifier | - | |
| Cellular phone registration failure, phone directory transfer failure. | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE |
| Cellular phone cannot send / receive. | 1. Proceed to "Cellular phone cannot Send / Receive" | CELLULAR PHONE CANNOT SEND / RECEIVE |
| 2. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| 3. Multi-display | - | |
| Cannot call in a certain place. | Proceed to "Cannot call in a Certain Place" | CANNOT CALL IN A CERTAIN PLACE |
| The other caller's voice cannot be heard, is too quiet, or distorted. | 1. Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted" | THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| 2. Multi-display | - | |
| The other caller cannot hear your voice, or your voice is too quiet or distorted. | 1. Proceed to "The Other Caller cannot hear your voice, or Your Voice is too Quiet or Distorted" | THE OTHER CALLER CANNOT HEAR YOUR VOICE, OR YOUR VOICE IS TOO QUIET OR DISTORTED |
| 2. Microphone circuit between overhead J/B and multi-display | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| 3. Microphone | - | |
| 4. Microphone amplifier | - | |
| 5. Multi-display | - |