DESCRIPTION
If the auto up/down function does not operate, the cause may be one or more of the following:
The ECU in the front power window regulator motor LH*1, RH*2 determines that the front power window regulator motor LH*1, RH*2 has not been initialized.
The multiplex network master switch has a malfunction.
The Hall IC in the front power window regulator motor LH*1, RH*2 has a malfunction.
*1: for LHD
*2: for RHD
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 (D DOOR P/W AUTO SW)
Use the Data List to check if the multiplex network master switch is functioning properly Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| D Door P/W Auto SW | Driver side power window auto up/down signal / ON or OFF | ON: Front power window switch LH*1, RH*2 auto up/down on multiplex network master master switch operated OFF: Front power window switch LH*1, RH*2 on multiplex network master master switch not operated |
- |
*1: for LHD
*2: for RHD
| OK |
|---|
| On GTS screen, item changes between ON and OFF according to above chart. |
| NG |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| OK |
|
READ VALUE USING GTS (D DOOR P/W AUTO SW)
Use the Data List to check if the multiplex network master switch is functioning properly Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| D Door P/W Auto SW | Driver side power window auto up/down signal / ON or OFF | ON: Front power window switch LH*1, RH*2 auto up/down operated OFF: Front power window switch LH*1, RH*2 not operated |
- |
*1: for LHD
*2: for RHD
| OK |
|---|
| On GTS screen, item changes between ON and OFF according to above chart. |
| NG |
|
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| OK |
|
PERFORM INITIALIZATION
*1: for LHD
*2: for RHD
Initialize the front power window regulator motor assembly LH*1, RH*2 Click here.
Check that the front door power window LH*1, RH*2 moves when the auto up and down functions of the multiplex network master switch assembly are operated Click here.
| OK |
|---|
| Driver side auto up and down functions are normal. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |
| A |
|
END (POWER WINDOW CONTROL SYSTEM HAS NOT BEEN INITIALIZED)
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
Temporarily replace the multiplex network master switch assembly with a new or normally functioning one Click here.
Check that the front door power window LH*1, RH*2 moves when the auto up and down functions of the multiplex network master switch assembly are operated Click here.
*1: for LHD
*2: for RHD
| OK |
|---|
| Driver side auto up and down functions are normal. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |
| A |
|
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE)