Problem Symptoms Table
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
DISPLAY FUNCTION
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Screen does not change when Point of Interest is selected on Destination screen | Proceed to "Touch panel switch does not function" | Refer to Touch Panel Switch does not Function |
| Screen does not change when eDestination is selected on point of interest screen | Proceed to "Touch panel switch does not function" | Refer to Touch Panel Switch does not Function |
| Screen does not change when Destination Assist is selected on Destination screen | Proceed to "Touch panel switch does not function" | Refer to Touch Panel Switch does not Function |
DESTINATION FUNCTION
| Symptom | Suspected Area | Refer To |
|---|---|---|
| eDestination button is unavailable (grayed out) | Subscription status. Perform Vehicle inquiry on TIS and confirm the subscription status. If the subscription is valid, press the manual (SOS) switch to verify that the system is active. If SOS call works properly, perform a Destination Assist call and verify that POI can be downloaded from the telematics provider. If the customer service number published on the Lexus customer website. | - |
| Cannot download information when Download is selected on eDestination screen |
|
- |
| Proceed to "DCM Data Signal Circuit between Navigation ECU and DCM" | Refer to DCM Data Signal Circuit between Navigation ECU and DCM | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Replace hard disk drive | Refer to REMOVAL | |
| Replace DCM (telematics transceiver) | Refer to REMOVAL | |
| Cannot contact call center when Call Dest. Assist is selected on Destination Assist screen | Contact telematics service provider to inquire about network status | - |
| Proceed to "Unable to Connect to Call Center" | Refer to UNABLE TO CONNECT TO CALL CENTER | |
| Proceed to "DCM Data Signal Circuit between Navigation ECU and DCM" | Refer to DCM Data Signal Circuit between Navigation ECU and DCM | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Replace hard disk drive | Refer to REMOVAL | |
| Replace DCM (telematics transceiver) | Refer to REMOVAL | |
| Other caller's voice volume cannot be adjusted using the Destination Assist screen. | Replace display and navigation module display | Refer to REMOVAL |
SDARS SYSTEM FUNCTION
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Screen does not change when XM related function is selected on Information screen | Proceed to "Satellite Radio Broadcast cannot be Received" | Refer to Satellite Radio Broadcast cannot be Received |
| Replace display and navigation module display | Refer to REMOVAL | |
| Replace radio receiver assembly | Refer to REMOVAL |
LEXUS INSIDER FUNCTION
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Screen does not change when LEXUS Insider is selected on Information screen | Proceed to "Touch panel switch does not function" | Refer to Touch Panel Switch does not Function |
| Data cannot be received using LEXUS Insider screen | Check LEXUS Insider Setting (Opt in/Out status) in Navigation Set-up menu | - |
| Proceed to "DCM Data Signal Circuit between Navigation ECU and DCM" | Refer to DCM Data Signal Circuit between Navigation ECU and DCM | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Replace radio receiver assembly | Refer to REMOVAL | |
| Replace DCM (telematics transceiver) | Refer to REMOVAL | |
| Articles cannot be received automatically although New Article Notification function of LEXUS Insider setting has been set to on* | Contact telematics service provider to inquire about network status | - |
| Replace display and navigation module display | Refer to REMOVAL | |
| Replace radio receiver assembly | Refer to REMOVAL | |
| Replace DCM (telematics transceiver) | Refer to REMOVAL | |
| Voice guidance does not function (Voice guidance for the navigation system is normal) | Replace display and navigation module display | Refer to REMOVAL |
| Cannot stop LEXUS Insider articles from playing | Select another mode, such as AM, FM, CD, etc. | - |
NOTE:
*: There could be a delay of several days for receiving LEXUS Insider articles.