The sliding roof ECU (sliding roof drive gear assembly [sliding roof]) and roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) receive each other's position information from the main body ECU (multiplex network body ECU) via LIN communication.
The sliding roof ECU (sliding roof drive gear assembly [sliding roof]) and roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) receive signals from each switch, and operate their built-in motors.
For the linked functions of the sliding roof and roof sunshade refer to Operation Check.
Inspect the fuse for circuits related to this system before performing the following procedure.
The sliding roof auto operation function can be customized. Make sure that the function is set to ON.
If the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) or roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) or roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) must be initialized.
The panoramic moon roof system uses the LIN communication systems. First, confirm that there are no malfunctions in the LIN communication systems. Refer to How to Proceed with Troubleshooting.
If a sliding roof ECU (sliding roof drive gear assembly [sliding roof]) or roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) DTC is output, perform troubleshooting for the DTC first.
Clear the DTCs.
for SFTM Made:
for GTMC Made:
Check for DTCs.
for SFTM Made:
for GTMC Made:
DTCs B127387 are not output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
for SFTM Made:
for GTMC Made:
Clear the DTCs.
Check for DTCs.
DTCs B2341 and B2344 are 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 |
|---|---|---|---|
| Slide Roof | Operate sliding motor | OFF / Opn/Dwn / Clos/Up | - |
| Tester Display |
|---|
| Slide Roof |
Slide roof is operated using GTS.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Vent Switch | TILT switch signal | OFF or ON | OFF: Tilt switch (UP/DOWN) on the tilt switch not pressed
ON: Tilt switch (UP/DOWN) on the tilt switch pressed |
- |
| Roof Open Switch | OPEN switch signal | OFF or ON | OFF: Slide switch (OPEN) on the slide switch not pressed
ON: Slide switch (OPEN) on the slide switch pressed |
- |
| Roof Close Switch | CLOSE switch signal | OFF or ON | OFF: Slide switch (CLOSE) on the slide switch not pressed
ON: Slide switch (CLOSE) on the slide switch pressed |
- |
| Tester Display |
|---|
| Vent Switch |
| Roof Open Switch |
| Roof Close Switch |
The GTS display changes according to switch operation as shown in the table.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Roof Sunshade ECU [Sliding Roof Drive Gear Assembly (Roof Sunshade)]) |
Disconnect the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A-1 (+B) - Body ground | Always | 11 to 14 V |
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A-2 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Sliding Roof ECU [Sliding Roof Drive Gear Assembly (Sliding Roof)]) |
Disconnect the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P4-1 (B) - Body ground | Always | 11 to 14 V |
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P4-2 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly [sliding roof]) connector.
Disconnect the P24 map light sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P4-4 (TILT) - P24-21 (B) | Always | Below 1 Ω |
| P4-5 (UP) - P24-20 (UP) | Always | Below 1 Ω |
| P4-8 (CLS) - P24-17 (CLS) | Always | Below 1 Ω |
| P4-9 (DWN) - P24-19 (DOWN) | Always | Below 1 Ω |
| P4-10 (OPN) - P24-18 (OPN) | Always | Below 1 Ω |
| P4-2 (E) - Body ground | Always | Below 1 Ω |
| P24-13 (GND) - Body ground | Always | Below 1 Ω |
| P4-4 (TILT) or P24-21 (B) - Body ground | Always | 10 kΩ or higher |
| P4-5 (UP) or P24-20 (UP) - Body ground | Always | 10 kΩ or higher |
| P4-8 (CLS) or P24-17 (CLS) - Body ground | Always | 10 kΩ or higher |
| P4-9 (DWN) or P24-19 (DOWN) - Body ground | Always | 10 kΩ or higher |
| P4-10 (OPN) or P24-18 (OPN) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG