Use the following procedure to troubleshoot the panoramic moon roof system.
*: Use the GTS.
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In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
The following 5 items are important points for problem analysis:
| What | Vehicle model, system name |
| When | Date, time, occurrence frequency |
| Where | Road conditions |
| Under what conditions? | Driving conditions, weather conditions |
| How did it happen? | Problem symptoms |
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Measure the battery voltage.
11 to 14 V
A simple method to determine whether the battery is discharged is to operate the horn.
If the voltage is below 11 V, recharge or replace the battery before proceeding.
Check the fuses and relays.
Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
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Using the GTS, check for CAN communication system DTCs.
for SFTM Made:
for GTMC Made:
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
A
B
for SFTM Made:
for GTMC Made:
Using the GTS, check for LIN communication system DTCs.
for SFTM Made:
for GTMC Made:
| Result | Proceed to |
|---|---|
| LIN DTCs are not output | A |
| LIN DTCs are output | B |
A
B
for SFTM Made:
for GTMC Made:
Check for DTCs and make a note of any codes that are output.
Clear the DTCs.
Recheck for DTCs.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
A
B
Refer to Problem Symptoms Table.
| Result | Proceed to |
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| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
A
B
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Check if the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) or roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) has been replaced, or the sliding roof glass sub-assembly, sliding roof housing panel, slide roof rail sub-assembly or sunshade trim sub-assembly has been adjusted, or removed and installed.
| Result | Proceed to |
|---|---|
| The sliding roof ECU (sliding roof drive gear assembly [sliding roof]) or roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) has been replaced, or the sliding roof glass sub-assembly, sliding roof housing panel, slide roof rail sub-assembly or sunshade trim sub-assembly has been adjusted, or removed and installed | A |
| The sliding roof ECU (sliding roof drive gear assembly [sliding roof]) and roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) have not been replaced, and the sliding roof glass sub-assembly, sliding roof housing panel, slide roof rail sub-assembly and sunshade trim sub-assembly have not been adjusted, or removed and installed | B |
A
B
Initialize the sliding roof ECU (sliding roof drive gear assembly [sliding roof]).
Initialize the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]).
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