This DTC is stored when the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) has not been initialized.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2348 | Position Initialization Incomplete (Fr Shade) | Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) has not been initialized. | ·
Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) ·
Map light sub-assembly ·
Harness or connector |
When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) is removed and reinstalled or replaced, the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) must be initialized.
The panoramic moon roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to How to Proceed with Troubleshooting.
When DTC B2342 and B2348 are output simultaneously, perform troubleshooting for DTC B2342 first.
Check that the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) can be initialized.
Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) can be initialized.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check the roof sunshade auto operation function.
Auto operation function operates normally.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Clear the DTCs.
Check for DTCs.
DTC B2348 is not output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Perform the Active Test according to the display on the GTS.
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Front Sliding Sunshade | Operate sunshade motor | OFF / Open / Close | - |
| Tester Display |
|---|
| Front Sliding Sunshade |
Roof sunshade is operated using the GTS.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Using the GTS, read the Data List.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Shade Close Switch | Sunshade close switch signal | ON or OFF | OFF: Roof sunshade switch (close) not pressed
ON: Roof sunshade switch (open) pressed |
- |
| Shade Open Switch | Roof sunshade open switch signal | ON or OFF | OFF: Roof sunshade switch (open) not pressed
ON: Roof sunshade (open) switch pressed |
- |
| Tester Display |
|---|
| Shade Close Switch |
| Shade Open Switch |
The GTS display changes according to switch operation as shown in the table.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the map light sub-assembly.
Inspect the map light sub-assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the P24 map light sub-assembly connector.
Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly [sliding roof]) connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P4-9 (DWN) - P24-19 (DOWN) | Always | Below 1 Ω |
| P4-5 (UP) - P24-20 (UP) | Always | Below 1 Ω |
| P4-2 (E) - Body ground | Always | Below 1 Ω |
| P24-13 (GND) - Body ground | Always | Below 1 Ω |
| P4-9 (DWN) or P24-19 (DOWN) - Body ground | Always | 10 kΩ or higher |
| P4-5 (UP) or P24-20 (UP) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG