Toyota Corolla Cross: Sliding Roof Motor Internal Electronic Failure (B234149,B234407)
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) |
| 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) |
| Main Body |
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 .gif)
PROCEDURE
| 1. |
CHECK SLIDING ROOF OPERATION |
(a) Check the sliding roof auto operation.
Click here
OK:
Auto operation operates normally.
| NG | .gif) | GO TO STEP 3 |
|
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| 2. |
CHECK DTC OUTPUT |
(a) Clear the DTCs.
Body Electrical > Main Body > Clear DTCs(b) Check for DTCs.
Body Electrical > Main Body > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTCs are not output | A |
|
DTCs are output | B |
| A |
| USE SIMULATION METHOD TO CHECK |
| B |
| 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 |
|
| 4. |
CHECK DTC OUTPUT |
(a) Clear the DTCs.
Body Electrical > Main Body > Clear DTCs(b) Check for DTCs.
Body Electrical > Main Body > Trouble Codes|
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) |
| 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) - T6-19 (CLS) |
Always | Below 1 Ω |
|
T12-8 (CLS) or T6-19 (CLS) - Body ground |
Always | 10 kΩ or higher |
|
T12-10 (OPN) - T6-1 (OPN) |
Always | Below 1 Ω |
|
T12-10 (OPN) or T6-1 (OPN) - Body ground |
Always | 10 kΩ or higher |
|
T12-9 (DWN) - T6-9 (DOWN) |
Always | Below 1 Ω |
|
T12-9 (DWN) or T6-9 (DOWN) - Body ground |
Always | 10 kΩ or higher |
|
T12-5 (UP) - T6-10 (UP) |
Always | Below 1 Ω |
|
T12-5 (UP) or T6-10 (UP) - Body ground |
Always | 10 kΩ or higher |
|
T6-17 (GND) - Body ground |
Always | Below 1 Ω |
|
T12-2 (E) - Body ground |
Always | Below 1 Ω |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 6. |
INSPECT 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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Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL PUMP
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection Specified Condition
U - V 0.05 to 3.0 Ω
V - W 0.05 to 3.0 Ω
U - W 0.05 to 3.0 Ω
If th
