DESCRIPTION
When the sliding roof ECU (sliding roof drive gear assembly) or roof sunshade ECU (sliding roof drive gear assembly) detects a motor malfunction and the sliding roof and roof sunshade operation is stopped, DTC B2341 is stored.
When the sliding roof ECU (sliding roof drive gear assembly) or roof sunshade ECU (sliding roof drive gear assembly) detects a gear position malfunction and the sliding roof and roof sunshade operation is stopped, DTC B2344 is stored.
Sliding Roof DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B2341 | Sensor (Motor) 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) |
|
B2344 | Position 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) |
|
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B2341 | Sensor (Motor) Failure | Sensor (motor) failure (When the roof sunshade ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the motor) |
|
B2344 | Position Failure | Position failure (When the roof sunshade ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the gear position) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
PROCEDURE
1. | CHECK FOR DTC |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Click here
OK:
DTCs B2341 and B2344 are not output.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
|
2. | CHECK DTC OUTPUT |
(a) Check the parts from which this DTC has been output.
Result | Proceed to |
---|---|
DTC output from sliding roof ECU (sliding roof drive gear assembly) | A |
DTC output from roof sunshade ECU (sliding roof drive gear assembly) | B |
B | ![]() | GO TO STEP 9 |
|
3. | CHECK SLIDING ROOF OPERATION |
(a) Check the sliding roof auto operation function.
Click here
OK:
Auto operation function operates normally.
NG | ![]() | GO TO STEP 5 |
|
4. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble CodesOK:
DTCs B2341 and B2344 are not output.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
NG | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
5. | INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
(a) Check that the sliding roof ECU (sliding roof drive gear assembly) can be initialized.
Click here
OK:
Sliding roof ECU (sliding roof drive gear assembly) can be initialized.
NG | ![]() | GO TO STEP 7 |
|
6. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble CodesOK:
DTCs B2341 and B2344 are not output.
OK | ![]() | END (MALFUNCTION DUE TO INITIALIZATION FAILURE) |
NG | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
7. | CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) - MAP LIGHT ASSEMBLY AND BODY GROUND) |
(a) Disconnect the U2 sliding roof ECU (sliding roof drive gear assembly) connector.
(b) Disconnect the U11 map light assembly connector.
(c) Disconnect the w1 roof sunshade ECU (sliding roof drive gear assembly) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
U2-8 (CLS) - U11-12 (CLS) | Always | Below 1 Ω |
U2-8 (CLS) or U11-12 (CLS) - Body ground | Always | 10 kΩ or higher |
U2-10 (OPN) - U11-11 (OPN) | Always | Below 1 Ω |
U2-10 (OPN) or U11-11 (OPN) - Body ground | Always | 10 kΩ or higher |
U2-4 (TILT) - U11-7 (B) | Always | Below 1 Ω |
U2-4 (TILT) or U11-7 (B) - Body ground | Always | 10 kΩ or higher |
U2-5 (OPN) - U11-23 (OPN) | Always | Below 1 Ω |
U2-5 (OPN) or U11-23 (OPN) - Body ground | Always | 10 kΩ or higher |
U2-9 (CLS) - U11-24 (DOWN) | Always | Below 1 Ω |
U2-9 (CLS) or U11-24 (DOWN) - Body ground | Always | 10 kΩ or higher |
U2-2 (E) - Body ground | Always | Below 1 Ω |
U11-19 (GND) - Body ground | Always | Below 1 Ω |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
8. | INSPECT MAP LIGHT ASSEMBLY |
(a) Remove the map light assembly.
Click here
(b) Inspect the map light assembly.
Click here
OK | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
NG | ![]() | REPLACE MAP LIGHT ASSEMBLY |
9. | CHECK ROOF SUNSHADE OPERATION |
(a) Check the roof sunshade auto operation function.
Click here
OK:
Auto operation function operates normally.
NG | ![]() | GO TO STEP 11 |
|
10. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Body Electrical > Sliding Sunshade > Trouble CodesOK:
DTCs B2341 and B2344 are not output.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
NG | ![]() | REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
11. | INITIALIZE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
(a) Check that the roof sunshade ECU (sliding roof drive gear assembly) can be initialized.
Click here
OK:
Roof sunshade ECU (sliding roof drive gear assembly) can be initialized.
NG | ![]() | GO TO STEP 13 |
|
12. | CHECK DTC OUTPUT |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Body Electrical > Sliding Sunshade > Trouble CodesOK:
DTCs B2341 and B2344 are not output.
OK | ![]() | END (MALFUNCTION DUE TO INITIALIZATION FAILURE) |
NG | ![]() | REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
13. | CHECK HARNESS AND CONNECTOR (ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) - MAP LIGHT ASSEMBLY AND BODY GROUND) |
(a) Disconnect the w1 roof sunshade ECU (sliding roof drive gear assembly) connector.
(b) Disconnect the U11 map light assembly connector.
(c) Disconnect the U2 sliding roof ECU (sliding roof drive gear assembly) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
w1-8 (CLS) - U11-12 (CLS) | Always | Below 1 Ω |
w1-8 (CLS) or U11-12 (CLS) - Body ground | Always | 10 kΩ or higher |
w1-10 (OPN) - U11-11 (OPN) | Always | Below 1 Ω |
w1-10 (OPN) or U11-11 (OPN) - Body ground | Always | 10 kΩ or higher |
w1-4 (VENT) - U11-7 (B) | Always | Below 1 Ω |
w1-4 (VENT) or U11-7 (B) - Body ground | Always | 10 kΩ or higher |
w1-5 (OPN) - U11-23 (UP) | Always | Below 1 Ω |
w1-5 (OPN) or U11-23 (UP) - Body ground | Always | 10 kΩ or higher |
w1-9 (CLS) - U11-24 (DOWN) | Always | Below 1 Ω |
w1-9 (CLS) or U11-24 (DOWN) - Body ground | Always | 10 kΩ or higher |
w1-2 (E) - Body ground | Always | Below 1 Ω |
U11-19 (GND) - Body ground | Always | Below 1 Ω |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
14. | INSPECT MAP LIGHT ASSEMBLY |
(a) Remove the map light assembly.
Click here
(b) Inspect the map light assembly.
Click here
OK | ![]() | REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) |
NG | ![]() | REPLACE MAP LIGHT ASSEMBLY |
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