Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000025B6A |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 - 11/2022] |
Title: SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM (except TMC Made): B2341,B2344; Sensor (Motor) Failure; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022] |
DTC
|
B2341
|
Sensor (Motor) Failure
|
DTC
|
B2344
|
Position 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 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)
|
-
Sliding roof ECU (Sliding roof drive gear sub-assembly)
-
Sliding roof switch (Map light assembly)
-
Wire harness or connector
|
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)
|
-
Sliding roof ECU (Sliding roof drive gear sub-assembly)
-
Sliding roof switch (Map light assembly)
-
Wire harness or connector
|
WIRING DIAGRAM
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 here
PROCEDURE
1.
|
CHECK SLIDING ROOF OPERATION
|
(a) Check the sliding roof auto operation.
Click here
OK:
Auto operation operates normally.
OK
|
|
|
(a) Clear the DTCs.
Body Electrical > Sliding Roof > Clear DTCs
(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble Codes
OK:
DTCs B2341 and B2344 are not output.
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.
OK
|
|
|
(a) Clear the DTCs.
Body Electrical > Sliding Roof > Clear DTCs
(b) Check for DTCs.
Body Electrical > Sliding Roof > Trouble Codes
OK:
DTCs B2341 and B2344 are not output.
OK |
|
END (MALFUNCTION DUE TO INITIALIZATION FAILURE)
|
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) - T6-13 (CLS)
|
Always
|
Below 1 Ω
|
T12-8 (CLS) or T6-13 (CLS) - Body ground
|
Always
|
10 kΩ or higher
|
T12-10 (OPN) - T6-14 (OPN)
|
Always
|
Below 1 Ω
|
T12-10 (OPN) or T6-14 (OPN) - Body ground
|
Always
|
10 kΩ or higher
|
T12-9 (DWN) - T6-15 (DOWN)
|
Always
|
Below 1 Ω
|
T12-9 (DWN) or T6-15 (DOWN) - Body ground
|
Always
|
10 kΩ or higher
|
T12-5 (UP) - T6-16 (UP)
|
Always
|
Below 1 Ω
|
T12-5 (UP) or T6-16 (UP) - Body ground
|
Always
|
10 kΩ or higher
|
T6-11 (GND) - Body ground
|
Always
|
Below 1 Ω
|
T12-2 (E) - Body ground
|
Always
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
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
|