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
Note
If the power window regulator motor assembly has been replaced with a new one, initialize the power window control system Click here.
If the power window regulator motor assembly and door window regulator sub-assembly have been removed and installed, or if the power window regulator motor assembly was reused when a door glass or door glass run was replaced, initialize the power window control system Click here.
PROCEDURE
READ VALUE USING GTS (RL DOOR P/W AUTO SW)
Use the Data List to check if the rear power window regulator switch 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 GTS screen, item changes between ON and OFF according to above chart. |
| NG |
|
INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH Click here |
| OK |
|
PERFORM INITIALIZATION
Initialize the power window regulator motor assembly Click here.
Check that the rear LH side door power window moves when the auto up and down functions of the rear power window regulator switch assembly LH are operated Click here.
| OK |
|---|
| Rear LH side auto up and down functions are normal. |
| NG |
|
REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| OK |
|
END (POWER WINDOW CONTROL SYSTEM HAS NOT BEEN INITIALIZED)
INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH
Remove the rear power window regulator switch assembly LH 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 ASSEMBLY LH - REAR POWER WINDOW MOTOR REGULATOR ASSEMBLY LH AND BODY GROUND)
Disconnect the R14 rear power window regulator switch assembly LH connector.
Disconnect the R9 rear power window regulator motor assembly LH 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