DESCRIPTION
When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 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 B2344 is stored.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B2341 | Sensor (Motor) 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) |
|
B2344 | Position 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) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
PROCEDURE
1. | CHECK SLIDING ROOF OPERATION |
(a) Check the sliding roof auto operation.
Click here
OK:
Auto operation operates normally.
NG | ![]() | GO TO STEP 3 |
|
2. | 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 SUB-ASSEMBLY) |
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 here
OK:
Sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.
NG | ![]() | GO TO STEP 5 |
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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 | ![]() | END (MALFUNCTION DUE TO INITIALIZATION FAILURE) |
NG | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
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 U11 sliding roof switch (map light assembly) connector.
(b) Disconnect the U2 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 |
---|---|---|
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 |
U2-9 (CLS) - U11-24 (DOWN) | Always | Below 1 Ω |
U2-9 (CLS) or U11-24 (DOWN) - Body ground | Always | 10 kΩ or higher |
U2-5 (OPN) - U11-23 (UP) | Always | Below 1 Ω |
U2-5 (OPN) or U11-23 (UP) - Body ground | Always | 10 kΩ or higher |
U11-19 (GND) - Body ground | Always | Below 1 Ω |
U2-2 (E) - Body ground | Always | Below 1 Ω |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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6. | INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
(a) Remove the sliding roof switch (map light assembly).
Click here
(b) Inspect the sliding roof switch (map light assembly).
Click here
OK | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
NG | ![]() | REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
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