Problem Symptoms Table
HINT:
Use the table to help determine the cause of the problem symptom. 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.
Display function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See |
|---|---|---|
| Black screen (no image appears on navigation/audio screen) | 1. Black screen | BLACK SCREEN |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 3. Replace multi-display | - | |
| Display does not dim (night screen) with TAIL switch on | 1. Display does not dim (night screen) when light control switch on | DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON |
| 2. Illumination signal circuit | ILLUMINATION CIRCUIT | |
| 3. Replace multi-display | - | |
| Power does not turn off (screen remains on) | 1. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| 2. Replace multi-display | - | |
| Touch panel switch does not function | 1. Touch panel switch does not function | TOUCH PANEL SWITCH DOES NOT FUNCTION |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 3. Replace multi-display | - | |
| Screen is distorted | 1. Display signal circuit between navigation ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY |
| 2. Replace navigation ECU | - | |
| 3. Replace multi-display | - | |
| Screen flickers or has color problems | 1. Screen flickers 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. Replace navigation ECU | - | |
| 4. Replace multi-display | - | |
| No switches function while vehicle is running | Vehicle speed signal circuit between multi-display and combination meter | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN MULTI-DISPLAY AND COMBINATION METER |
| Display panel does not open or tilt, or tilts is defective | 1. Display panel does not open or tilt, or tilts is improperly | DISPLAY PANEL DOES NOT OPEN, TILT OR TILTS IMPROPERLY |
| 2. AVC-LAN circuit between radio receiver and gateway ECU | AVC-LAN Circuit between Radio Receiver and Gateway ECU | |
| 3. AVC-LAN circuit between radio receiver and multi-display | AVC-LAN Circuit between Radio Receiver and Multi-Display | |
| 4. Door control switch circuit | DOOR CONTROL SWITCH CIRCUIT | |
| 5. Replace instrument cluster finish panel center | - | |
| 6. Replace multi-display | - | |
| 7. Replace A/C amplifier | - | |
| Panel switch does not function | 1. Panel switch does not function | PANEL SWITCHES DO NOT FUNCTION |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 3. Replace multi-display | - |
Navigation function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See |
|---|---|---|
| Map disc cannot be inserted | 1. Map disc cannot be inserted | MAP DISC CANNOT BE INSERTED |
| 2. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| 3. Replace navigation ECU | - | |
| Map disc cannot be ejected | 1. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT |
| 2. Replace navigation ECU | - | |
| Vehicle position mark is very inaccurate | 1. Vehicle position mark deviates greatly | VEHICLE POSITION MARK DEVIATES GREATLY |
| 2. Replace GPS antenna | - | |
| 3. Replace navigation ECU | - | |
| Cursor or map rotates when vehicle is stopped | 1. Cursor or map rotates when vehicle is stopped | CURSOR OR MAP ROTATES WHEN VEHICLE STOPPED |
| 2. Replace navigation ECU | - | |
| Vehicle position mark is not updated | 1. Vehicle position display is not updated | VEHICLE POSITION MARK IS NOT UPDATED |
| 2. Replace map disc | - | |
| 3. Replace navigation ECU | - | |
| Current position display does not appear | 1. Current position display does not appear | CURRENT POSITION DISPLAY DOES NOT APPEAR |
| 2. Replace map disc | - | |
| 3. Replace navigation ECU | - | |
| GPS mark is not displayed | 1. GPS mark is not displayed | GPS MARK IS NOT DISPLAYED |
| 2. Replace GPS antenna | - | |
| 3. Replace navigation ECU | - | |
| Voice guidance does not function | 1. Voice guidance does not function | VOICE GUIDANCE DOES NOT FUNCTION |
| 2. Mute signal circuit between stereo component amplifier and Navigation ECU | MUTE SIGNAL CIRCUIT BETWEEN STEREO COMPONENT AMPLIFIER ASSEMBLY AND NAVIGATION ECU | |
| 3. Navigation voice speaker circuit | NAVIGATION VOICE SPEAKER CIRCUIT | |
| 4. Replace map disc | - | |
| 5. Replace stereo component amplifier | - | |
| 6. Replace navigation ECU | - | |
| Map display is incomplete | 1. Map display incomplete | MAP DISPLAY INCOMPLETE |
| 2. Replace map disc | - | |
| 3. Replace navigation ECU | - | |
| Route cannot be calculated | 1. Route cannot be calculated | ROUTE CANNOT BE CALCULATED |
| 2. Replace map disc | - | |
| 3. Replace navigation ECU | - | |
| Voice recognition problems occur | 1. Voice recognition difficulty | VOICE RECOGNITION DIFFICULTY |
| 2. Replace navigation ECU | - | |
| Voice is not recognized | 1. Voice is not recognized | VOICE IS NOT RECOGNIZED |
| 2. Microphone circuit between overhead J/B and multi-display | - | |
| 3. Microphone circuit between multi-display and navigation ECU | MICROPHONE CIRCUIT BETWEEN MULTI-DISPLAY AND NAVIGATION ECU | |
| 4. Replace navigation ECU | - | |
| 5. Replace multi-display | - | |
| Panel switch does not function | 1. Panel switch does not function | PANEL SWITCHES DO NOT FUNCTION |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 3. Replace multi-display | - |
Steering pad switch function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See |
|---|---|---|
| Voice navigation cannot be operated with steering pad switch. | 1. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| 2. Replace steering pad switch modulator | - | |
| 3. Replace navigation ECU | - |
Bluetooth function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See |
|---|---|---|
| Cellular phone registration and phone directory transfer failure | Cellular phone registration failure, phone directory transfer failure | CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE |
| Cellular phone cannot make / receive calls | 1. Cellular phone cannot send / receive | CELLULAR PHONE CANNOT SEND / RECEIVE |
| 2. Own voice cannot be heard, too quiet or distorted | OWN VOICE CANNOT BE HEARD, TOO QUIET OR DISTORTED | |
| 3. Cellular phone voice circuit between multi-display and navigation ECU | CELLULAR PHONE VOICE CIRCUIT BETWEEN MULTI-DISPLAY AND NAVIGATION ECU | |
| 4. Replace navigation ECU | - | |
| 5. Replace multi-display | - | |
| Cellular phone cannot make calls in certain places | Cannot calls in certain place | CANNOT CALL IN A CERTAIN PLACE |
| Voice on phone is not head, is too quiet or is distorted | 1. Voice on phone cannot be heard, too quiet or distorted | VOICE ON PHONE CANNOT BE HEARD, TOO QUIET OR DISTORTED |
| 2. Microphone circuit between multi-display and navigation ECU | MICROPHONE CIRCUIT BETWEEN MULTI-DISPLAY AND NAVIGATION ECU | |
| 3. Replace navigation ECU | - | |
| 4. Replace multi-display | - | |
| Own voice cannot be is heard, too quiet is distorted | Voice on phone cannot be heard, too quiet or distorted | OWN VOICE CANNOT BE HEARD, TOO QUIET OR DISTORTED |