RM38T0EC _59 Vehicle Exterior _114986 SLIDING ROOF / CONVERTIBLE _0583911 SLIDING ROOF SYSTEM(Production Date from 2023/04) C

SLIDING ROOF / CONVERTIBLE  SLIDING 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 sub-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 sub-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 DTC Output from
B234149 Sliding Roof Motor Internal Electronic Failure Sensor (motor) failure (The sliding roof ECU (sliding roof drive gear sub-assembly) enters fail-safe mode due to a problem with the motor)
·

Sliding roof ECU (sliding roof drive gear sub-assembly)

·

Sliding roof switch (Map light assembly)

·

Wire harness or connector


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

Sliding roof ECU (sliding roof drive gear sub-assembly)

·

Sliding roof switch (Map light assembly)

·

Wire harness or connector


Main Body

WIRING DIAGRAM

B670130E02
0.896,3.177 1.969,3.375 1.073,0.198 10 false Tilt Switch 0.635,1.698 1.917,1.938 1.281,0.24 10 false Sliding Roof Switch 4.51,3.719 5.583,3.917 1.073,0.198 10 false T12 0.781,3.917 2.563,4.25 1.781,0.333 10 false Map Light Assembly 4.51,3.906 7.063,4.25 2.552,0.344 10 false Sliding Roof Drive Gear Sub-assembly 0.781,3.729 1.854,3.927 1.073,0.198 10 false T6 2.135,0.969 2.51,1.188 0.375,0.219 10 false OPN 2.156,1.365 2.531,1.583 0.375,0.219 10 false CLS 2.229,2.021 2.604,2.24 0.375,0.219 10 false UP 2,2.396 2.542,2.615 0.542,0.219 10 false DOWN 2.573,2.74 2.948,2.958 0.375,0.219 10 false 14 2.125,2.75 2.5,2.969 0.375,0.219 10 false GND 2.573,2.021 2.969,2.24 0.396,0.219 10 false 15 2.583,0.958 2.958,1.177 0.375,0.219 10 false 5 2.573,2.396 2.948,2.615 0.375,0.219 10 false 16 4.188,0.969 4.563,1.188 0.375,0.219 10 false 10 4.26,1.375 4.635,1.594 0.375,0.219 10 false 8 4.26,2.052 4.635,2.271 0.375,0.219 10 false 5 4.25,2.417 4.625,2.656 0.375,0.24 10 false 9 4.469,0.969 4.844,1.188 0.375,0.219 10 false OPN 4.479,2.042 4.854,2.26 0.375,0.219 10 false UP 4.479,1.375 4.854,1.594 0.375,0.219 10 false CLS 4.479,2.406 4.854,2.625 0.375,0.219 10 false DWN 4.479,2.76 4.708,3.01 0.229,0.25 10 false E 4.25,2.76 4.625,3 0.375,0.24 10 false 2 2.573,1.354 2.969,1.573 0.396,0.219 10 false 17 5.115,3.229 6.438,3.563 1.323,0.333 10 false Sliding Roof ECU

CAUTION / NOTICE / HINT

NOTICE:

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

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


PROCEDURE

1.CHECK SLIDING ROOF OPERATION
a.

Check the sliding roof auto operation.

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

OK:

Auto operation operates normally.



Result:
Proceed to
OK
NG



OK

2.CHECK DTC OUTPUT

NG

3.INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
2.CHECK DTC OUTPUT
a.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449

b.

Check for DTCs.

Body Electrical > Main Body > Trouble Codes
50001 449

Result:
Result Proceed to
DTCs are not output A
DTCs are 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 SUB-ASSEMBLY)

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


3.INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
a.

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

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

OK:

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



Result:
Proceed to
OK
NG



OK

4.CHECK DTC OUTPUT

NG

5.CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) AND BODY GROUND)
4.CHECK DTC OUTPUT
a.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 449

b.

Check for DTCs.

Body Electrical > Main Body > Trouble Codes
50001 449

Result:
Result Proceed to
DTCs are not output A
DTCs are output B



A

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

B

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

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


5.CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) AND BODY GROUND)
a.

Disconnect the T6 sliding roof switch (map light assembly) connector.


b.

Disconnect the T12 sliding roof ECU (sliding roof drive gear sub-assembly) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
T12-8 (CLS) - T6-17 (CLS) Always Below 1 Ω
T12-8 (CLS) or T6-17 (CLS) - Body ground Always 10 kΩ or higher
T12-10 (OPN) - T6-5 (OPN) Always Below 1 Ω
T12-10 (OPN) or T6-5 (OPN) - Body ground Always 10 kΩ or higher
T12-9 (DWN) - T6-16 (DOWN) Always Below 1 Ω
T12-9 (DWN) or T6-16 (DOWN) - Body ground Always 10 kΩ or higher
T12-5 (UP) - T6-15 (UP) Always Below 1 Ω
T12-5 (UP) or T6-15 (UP) - Body ground Always 10 kΩ or higher
T6-14 (GND) - Body ground Always Below 1 Ω
T12-2 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

6.INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR