RM38T0EC _59 Vehicle Exterior _114986 SLIDING ROOF / CONVERTIBLE _0584017 PANORAMIC MOON ROOF SYSTEM(Production Date from 2023/04) C

SLIDING ROOF / CONVERTIBLE  PANORAMIC MOON ROOF SYSTEM(Production Date from 2023/04)  B234149  Sliding Roof Motor Internal Electronic Failure  B234407  Sliding Roof Position Mechanical Failure  


DESCRIPTION

When the sliding roof ECU (sliding roof drive gear assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B234149 is stored.

When the sliding roof ECU (sliding roof drive gear assembly) detects a gear position malfunction and the sliding roof operation is stopped, DTC B234407 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B234149 Sliding Roof Motor Internal Electronic Failure Sensor (motor) failure (When the sliding roof ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the motor)
·

Sliding roof ECU (sliding roof drive gear assembly)

·

Map light assembly

·

No. 2 roof wire

·

Wire harness or connector


B234407 Sliding Roof Position Mechanical Failure Position failure (When the sliding roof ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the gear position)
·

Sliding roof ECU (sliding roof drive gear assembly)

·

Map light assembly

·

No. 2 roof wire

·

Wire harness or connector



WIRING DIAGRAM

B678183E01
0.771,6.292 3.365,6.552 2.594,0.26 10 false : LIN Communication Line 4.969,5.958 7.104,6.427 2.135,0.469 10 false Sliding Roof Drive Gear Assembly 0.844,3.135 1.792,3.396 0.948,0.26 10 false Slide Switch 0.385,1.083 2.063,1.594 1.677,0.51 10 false Main Body ECU (Multiplex Network Body ECU) 5.063,1.969 5.521,2.167 0.458,0.198 10 false OPN 5.063,2.521 5.521,2.719 0.458,0.198 10 false CLS 5.063,3.583 5.677,3.781 0.615,0.198 10 false TILT 5.094,4.875 5.25,5.073 0.156,0.198 10 false E 4.698,1.854 5.01,2.052 0.313,0.198 10 false 10 4.74,2.385 4.896,2.583 0.156,0.198 10 false 8 1.969,2 2.427,2.198 0.458,0.198 10 false OPN 1.969,2.5 2.427,2.698 0.458,0.198 10 false CLS 2.125,3.604 2.281,3.802 0.156,0.198 10 false B 0.865,4.24 1.552,4.458 0.688,0.219 10 false Tilt Switch 1.938,4.854 2.396,5.052 0.458,0.198 10 false GND 4.74,3.479 4.896,3.677 0.156,0.198 10 false 4 4.76,4.76 4.917,4.958 0.156,0.198 10 false 2 0.625,5.698 2.458,6.115 1.833,0.417 10 false Map Light Assembly 0.625,5.531 1.083,5.729 0.458,0.198 10 false T6 4.74,4.969 5.052,5.167 0.313,0.198 10 false f1 2.375,1.948 2.688,2.146 0.313,0.198 10 false 5 2.344,2.5 2.656,2.698 0.313,0.198 10 false 17 2.365,3.604 2.677,3.802 0.313,0.198 10 false 18 2.354,4.854 2.667,5.052 0.313,0.198 10 false 14 4.74,3.708 5.052,3.906 0.313,0.198 10 false f1 4.74,2.594 5.052,2.792 0.313,0.198 10 false f1 4.74,2.073 5.052,2.271 0.313,0.198 10 false f1 3.552,5.552 4.792,5.958 1.24,0.406 10 false No. 2 Roof Wire 3.229,3.708 3.542,3.906 0.313,0.198 10 false Tf1 3.24,2.604 3.552,2.802 0.313,0.198 10 false Tf1 3.24,2.083 3.552,2.281 0.313,0.198 10 false Tf1 3.281,1.865 3.594,2.063 0.313,0.198 10 false 6 3.281,2.385 3.594,2.583 0.313,0.198 10 false 4 3.271,3.479 3.583,3.677 0.313,0.198 10 false 2 3.229,4.969 3.542,5.167 0.313,0.198 10 false Tf1 3.271,4.75 3.583,4.948 0.313,0.198 10 false 1 5.438,5.365 6.771,5.74 1.333,0.375 10 false Sliding Roof ECU

CAUTION / NOTICE / HINT

NOTICE:
·

If the sliding roof ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear assembly) must be initialized.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF SYSTEM (Production Date from 2023/04)>INITIALIZATION

·

The panoramic moon roof system uses the LIN communication system. First, confirm that there are no malfunctions in the LIN communication system. Refer to How to Proceed with Troubleshooting.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (Production Date from 2023/04)>HOW TO PROCEED WITH TROUBLESHOOTING



PROCEDURE

1.CHECK PANORAMIC MOON ROOF OPERATION
a.

Check the panoramic moon roof auto operation.

HINT:

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (Production Date from 2023/04)>OPERATION CHECK


OK:

Auto operation operates normally.



Result:
Proceed to
OK
NG



OK

2.CLEAR DTC

NG

4.INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
2.CLEAR DTC
a.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449

Result:
Proceed to
NEXT



NEXT

3.CHECK FOR DTC
3.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Main Body > Trouble Codes
50001 449

Result:
Result Proceed to
B234149 and B234407 are not output A
B234149 or B234407 is output B



A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


4.INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
a.

Check that the sliding roof ECU (sliding roof drive gear assembly) can be initialized.

HINT:

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (Production Date from 2023/04)>INITIALIZATION


OK:

Sliding roof ECU (sliding roof drive gear assembly) can be initialized.



Result:
Proceed to
OK
NG



OK

5.CLEAR DTC

NG

7.PERFORM ACTIVE TEST USING GTS
5.CLEAR DTC
a.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449

Result:
Proceed to
NEXT



NEXT

6.CHECK FOR DTC
6.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Main Body > Trouble Codes
50001 449

Result:
Result Proceed to
B234149 and B234407 are not output A
B234149 or B234407 is output B



A

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

B

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


7.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Sliding Roof Open Sliding roof open activate OFF/ON -
Sliding Roof Close Sliding roof close activate OFF/ON -
Body Electrical > Main Body > Active Test
Tester Display
Sliding Roof Open
50004 449 40
Body Electrical > Main Body > Active Test
Tester Display
Sliding Roof Close
50004 449 41
OK:

Slide roof is operated using GTS.



Result:
Proceed to
OK
NG



OK

8.READ VALUE USING GTS

NG

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


8.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Roof OPEN Switch Sliding roof open switch OFF or ON OFF: Sliding roof open switch not pressed
ON: Sliding roof open switch pressed 		-
Roof CLOSE Switch Sliding roof close switch OFF or ON OFF: Sliding roof close switch not pressed
ON: Sliding roof close switch pressed 		-
VENT Switch Sliding roof tilt switch OFF or ON OFF: Sliding roof tilt switch not pressed
ON: Sliding roof tilt switch pressed 		-
Body Electrical > Main Body > Data List
Tester Display
Roof OPEN Switch
Roof CLOSE Switch
VENT Switch
50003 449 380,381,384
OK:

The GTS display changes according to switch operation as shown in the table.



Result:
Proceed to
OK
NG



OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


NG

9.INSPECT MAP LIGHT ASSEMBLY
10.INSPECT NO. 2 ROOF WIRE
a.

Disconnect the f1 sliding roof ECU (sliding roof drive gear assembly) connector.


b.

Disconnect the Tf1 No. 2 roof wire connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
f1-10 (OPN) - Tf1-6 Always Below 1 Ω
f1-8 (CLS) - Tf1-4 Always Below 1 Ω
f1-4 (TILT) - Tf1-2 Always Below 1 Ω
f1-2 (E) - Tf1-1 Always Below 1 Ω
f1-10 (OPN) or Tf1-6 - Body ground Always 10 kΩ or higher
f1-8 (CLS) or Tf1-4 - Body ground Always 10 kΩ or higher
f1-4 (TILT) or Tf1-2 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - NO. 2 ROOF WIRE)

NG

REPLACE NO. 2 ROOF WIRE

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


11.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - NO. 2 ROOF WIRE)
a.

Disconnect the T6 map light assembly connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
T6-5 (OPN) - Tf1-6 Always Below 1 Ω
T6-17 (CLS) - Tf1-4 Always Below 1 Ω
T6-18 (B) - Tf1-2 Always Below 1 Ω
T6-14 (GND) - Body ground Always Below 1 Ω
Tf1-1 (GND) - Body ground Always Below 1 Ω
T6-5 (OPN) or f1-10 (OPN) - Body ground Always 10 kΩ or higher
T6-17 (CLS) or Tf1-4 - Body ground Always 10 kΩ or higher
T6-18 (B) or Tf1-2 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR