DESCRIPTION
If the auto up/down function does not operate, the cause may be one or more of the following:
The ECU in the power window regulator motor determines that the power window regulator motor has not been initialized.
The rear power window regulator switch has a malfunction.
The Hall IC in the power window regulator motor has a malfunction.
There is an open or short in the wiring between the rear power window regulator switch and rear power window regulator motor.
WIRING DIAGRAM
INSPECTION PROCEDURE
Tech Tips
Since the power window control system has functions that use LIN communication, first confirm that there is no malfunction in the communication system by inspecting the LIN communication functions in accordance with the "How to Proceed with Troubleshooting" procedures. Then, conduct the following inspection procedure.
PROCEDURE
CHECK FOR DTC
Clear the DTCs Click here.
Check for DTCs Click here.
| Result | Proceed to |
|---|---|
| DTC is not output | A |
| DTC B2311 is output | B |
| DTC B2312 is output | C |
| DTC B2313 is output | D |
| B |
|
GO TO DTC B2311 Click here |
| C |
|
GO TO DTC B2312 Click here |
| D |
|
GO TO DTC B2313 Click here |
| A |
|
CHECK MANUAL UP/DOWN FUNCTION (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH)
Check that the manual up/down function using the rear power window regulator switch can operate the rear power window regulator motor Click here.
| OK |
|---|
| Manual up/down function operates. |
| NG |
|
GO TO "Rear Power Window LH does not Operate with Rear Power Window Switch LH" Click here |
| OK |
|
READ VALUE USING INTELLIGENT TESTER (REAR POWER WINDOW REGULATOR SWITCH)
Use the Data List to check if the rear power window regulator is functioning properly Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| RL Door P/W Auto SW | Rear power window LH auto up/down signal / ON or OFF | ON: Rear power window LH auto up/down switch operated OFF: Rear power window LH switch not operated |
- |
| OK |
|---|
| On tester screen, item changes between ON and OFF according to above chart. |
| NG |
|
INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH Click here |
| OK |
|
REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here
INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH
Remove the rear power window regulator switch Click here.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH LH - REAR POWER WINDOW REGULATOR MOTOR LH AND BODY GROUND)
Disconnect the M2 rear power window regulator switch connector.
Disconnect the M4 power window regulator motor connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here