Problem Symptoms Table
DISPLAY FUNCTION
PROBLEM SYMPTOM CHART
| Symptom | Suspected area | See |
|---|---|---|
| Black screen (No image appears on navigation and audio screen) | "BLACK SCREEN (NO IMAGE APPEARS ON NAVIGATION AND AUDIO SCREEN)" | BLACK SCREEN (NO IMAGE APPEARS ON NAVIGATION AND AUDIO SCREEN) |
| Dimmer signal circuit | DIMMER SIGNAL CIRCUIT | |
| Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Illumination for panel switch does not come on with TAIL switch on | "ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON" | ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON |
| Dimmer signal circuit | DIMMER SIGNAL CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Display does not dim (Night Screen) with TAIL switch on | "DISPLAY DOES NOT DIM (NIGHT SCREEN) WITH TAIL SWITCH ON" | DISPLAY DOES NOT DIM (NIGHT SCREEN) WITH TAIL SWITCH ON |
| Dimmer signal circuit | DIMMER SIGNAL CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Power does not turn off (The screen remains on) | Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| Replace multi-display | REMOVAL | |
| Panel switches do not function | "PANEL SWITCHES DO NOT FUNCTION" | PANEL SWITCHES DO NOT FUNCTION |
| Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Touch panel switch does not function | "TOUCH PANEL SWITCH DOES NOT FUNCTION" | TOUCH PANEL SWITCH DOES NOT FUNCTION |
| Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Screen is distorted | Display signal circuit between television camera ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN TELEVISION CAMERA ECU AND MULTI-DISPLAY |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL | |
| Screen flicker or color distortion | "SCREEN FLICKER OR COLOR DISTORTION" | SCREEN FLICKER OR COLOR DISTORTION |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL | |
| No switches function 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 SYMPTOM CHART
| Symptom | Suspected area | See |
|---|---|---|
| Map disc cannot be inserted | "MAP DISC CANNOT BE INSERTED" | MAP DISC CANNOT BE INSERTED |
| Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| Replace navigation ECU | REMOVAL | |
| Map disc cannot be ejected | Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT |
| Replace navigation ECU | REMOVAL | |
| Vehicle position mark deviates greatly | "VEHICLE POSITION MARK DEVIATES GREATLY" | VEHICLE POSITION MARK DEVIATES GREATLY |
| Replace GPS antenna assembly | REMOVAL | |
| Replace navigation ECU | REMOVAL | |
| Cursor or map rotates when vehicle is stopped | "CURSOR OR MAP ROTATES WHEN VEHICLE IS STOPPED" | CURSOR OR MAP ROTATES WHEN VEHICLE STOPPED |
| Replace navigation ECU | REMOVAL | |
| Vehicle position mark is not updated | "VEHICLE POSITION MARK IS NOT UPDATED" | VEHICLE POSITION MARK IS NOT UPDATED |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| GPS mark is not displayed | "GPS MARK IS NOT DISPLAYED" | GPS MARK IS NOT DISPLAYED |
| Replace GPS antenna assembly | REMOVAL | |
| Replace navigation ECU | REMOVAL | |
| Voice guidance does not function | "VOICE GUIDANCE DOES NOT FUNCTION" | VOICE GUIDANCE DOES NOT FUNCTION |
| Speaker circuit (navigation voice) | NAVIGATION VOICE SPEAKER CIRCUIT | |
| Replace map disc | - | |
| Replace stereo component amplifier | REMOVAL | |
| Replace navigation ECU | REMOVAL | |
| Map display incomplete | "MAP DISPLAY INCOMPLETE" | MAP DISPLAY INCOMPLETE |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| Route cannot be calculated | "ROUTE CANNOT BE CALCULATED" | ROUTE CANNOT BE CALCULATED |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| Voice recognition difficulty (Except Taiwan) | "VOICE RECOGNITION DIFFICULTY" | VOICE RECOGNITION DIFFICULTY |
| Replace navigation ECU | REMOVAL | |
| Voice is not recognized (Except Taiwan) | "VOICE IS NOT RECOGNIZED" | VOICE IS NOT RECOGNIZED |
| Microphone circuit between overhead J/B and multi-display | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| Replace microphone | - | |
| Replace microphone amplifier | REMOVAL | |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL |
STEERING PAD SWITCH FUNCTION
PROBLEM SYMPTOM CHART
| Symptom | Suspected area | See |
|---|---|---|
| Voice navigation cannot be operated with steering pad switch | Replace steering pad switch | REMOVAL |
| Replace radio receiver assembly | REMOVAL |
BLUETOOTH FUNCTION
PROBLEM SYMPTOM CHART
| Symptom | Suspected area | See |
|---|---|---|
| Cellular phone registration failure, phone directory transfer failure | "CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE" | CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE |
| Cellular phone cannot send / receive | "CELLULAR PHONE CANNOT SEND / RECEIVE" | CELLULAR PHONE CANNOT SEND / RECEIVE |
| Own voice cannot be heard, too quiet or distorted | "OWN VOICE CANNOT BE HEARD, TOO QUIET OR DISTORTED" | OWN VOICE CANNOT BE HEARD, TOO QUIET OR DISTORTED |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL | |
| Cannot call in a certain place | "CANNOT CALL IN A CERTAIN PLACE" | CANNOT CALL IN A CERTAIN PLACE |
| Voice on phone cannot be heard, too quiet or distorted | "VOICE ON PHONE CANNOT BE HEARD, TOO QUIET OR DISTORTED" | VOICE ON PHONE CANNOT BE HEARD, TOO QUIET OR DISTORTED |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL |