DESCRIPTION
If the auto up/down function does not operate, the cause may be one or more of the following:
The ECU in the rear power window regulator motor LH determines that the rear power window regulator motor LH has not been initialized.
The rear power window regulator switch LH has a malfunction.
The Hall IC in the rear power window regulator motor LH has a malfunction.
There is an open or short in the wiring between the rear power window regulator switch LH and rear power window regulator motor LH.
WIRING DIAGRAM
| *a | Rear Power Window Regulator Switch Assembly LH |
| *b | Rear Power Window Regulator Motor Assembly LH |
CAUTION / NOTICE / HINT
Note
The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly Click here.
If the rear power window regulator motor assembly LH has been replaced with a new one, initialize the power window control system Click here.
Check that the "RL Window Auto Up" and "RL Window Auto Down" power window control system customize settings are "ON" before proceeding with work Click here.
After the catch protection function operates, the auto operation is not performed the first time auto up is performed. All auto up operations performed after the first operate normally.
Tech Tips
If the pulse sensor built into the rear power window regulator motor assembly LH is malfunctioning, the power window control system enters fail-safe mode. The remote up and down and auto up and down functions cannot be operated during fail-safe mode. However, the power window can be closed by holding the rear power window regulator switch assembly LH at the auto up position, and opened manually by pushing down the rear power window regulator switch assembly 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 LH 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 switch LH auto up/down operated OFF: Rear power window switch LH 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 rear power window regulator motor assembly LH Click here.
Check that the rear door power window LH 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. |
| OK |
|
END (POWER WINDOW CONTROL SYSTEM HAS NOT BEEN INITIALIZED) |
| NG |
|
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 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| OK |
|
REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |