FOREWORD [CAR-NAVIGATION SYSTEM (INTEGRATED MULTI INFORMATION DISPLAY)]
Note. The car navigation unit is integrated with the multi information display. When verifying the DTCs and wiring harness, select the multi information display. If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.
Troubleshooting Procedure Chart - Foreword - Car-Navigation System (Integrated Multi Information Display). Scheme 238
Scheme 238: Troubleshooting Procedure Chart - Foreword - Car-Navigation System (Integrated Multi Information Display)
Scheme 239
Scheme 239: Action for Non-Repeatable Malfunction
Scheme 240
- If the malfunction does not recur, verify the malfunction cause by performing the following actions: Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data (such as CAN circuit voltage) at that time, and detect the malfunction cause. Refer to [Determining Open Circuit Location] based on the recorded DTC, shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for any changes in CAN system voltage or occurrence of any DTCs. (Scheme 239): Inspecting Wiring Harness And Connector Of Electrical Component Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection. (Scheme 240): Inspecting Female Terminals On Connector Of Electric Component
NO.2 CAR-NAVIGATION SYSTEM DOES NOT OPERATE [CAR-NAVIGATION SYSTEM]
| 2 | Even if the map screen is touched, the car-navigation system cannot be operated |
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| POSSIBLE CAUSE | Audio unit malfunction (bad LCD panel) Car-navigation unit malfunction |
NO.3 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP [CAR-NAVIGATION SYSTEM]
| 3 | The vehicle position on the map screen deviates from the actual vehicle position. |
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| POSSIBLE CAUSE | GPS antenna malfunction Car-navigation unit malfunction Audio unit malfunction Poor GPS antenna connection Poor reception due to object obstructing GPS antenna Poor connection of vehicle wiring harness (vehicle signal) connector, bad pins. Open or short circuit in vehicle wiring harness (vehicle signal) |
NO.4 NO VOICE NAVIGATION [CAR-NAVIGATION SYSTEM]
| 4 | Even if the route guidance mode is initiated, there is no voice guidance |
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| POSSIBLE CAUSE | Route guidance mode setting mistake Voice guidance volume adjustment malfunction Poor volume adjustment of audio system Route guidance mode setting mistake Car-navigation unit malfunction |
NO.5 DISPLAY SCREEN DOES NOT CHANGE TO THE NIGHT MODE [CAR-NAVIGATION SYSTEM]
| 5 | Does not switch to the night screen even though the light switch is in the TNS position. |
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| POSSIBLE CAUSE | Car-navigation unit malfunction TNS signal malfunction - Open, short circuit in audio unit terminal 1E |
