DESCRIPTION
If the manual up/down function does not operate, there may be a malfunction in the multiplex network master switch, front power window regulator motor LH*1, RH*2, harness or connector.
*1: for LHD
*2: for RHD
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
Inspect the fuses and relays for circuits related to this system before performing the following inspection procedure.
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.
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
READ VALUE USING GTS (D DOOR P/W SW)
Use the Data List to check if the front power window regulator motor LH*1, RH*2 is functioning properly Click here.
*1: for LHD
*2: for RHD
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| D Door P/W Up SW | Driver side power window manual up signal / ON or OFF | ON: Front power window switch LH manual up operated OFF: Front power window switch LH not operated |
- |
| D Door P/W Down SW | Driver side power window manual down signal / ON or OFF | ON: Front power window switch LH manual down operated OFF: Front power window switch LH not operated |
- |
| OK |
|---|
| On GTS screen, each item changes between ON and OFF according to above chart. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
| B |
|
CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU LH - BATTERY AND BODY GROUND) Click here |
| C |
|
CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - BATTERY AND BODY GROUND) Click here |
| A |
|
PERFORM ACTIVE TEST USING GTS (POWER WINDOW)
Select the Active Test, use the GTS to generate a control command, and then check that the power window regulator motor operates Click here.
| Tester Display | Test Part | Control Range | Diagnostic Note |
|---|---|---|---|
| Power Window | Driver side power window | OFF/UP/DOWN | - |
| OK |
|---|
| The power window regulator motor operates normally. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
| A |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| B |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
| C |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |
CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU LH - BATTERY AND BODY GROUND)
| *a | Front view of wire harness connector (to Front Multiplex Network Door ECU LH) |
Disconnect the front multiplex network door ECU LH connector.
Measure the voltage and resistance according to the value(s) in the table below.
| Standard Voltage | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT MULTIPLEX NETWORK DOOR ECU LH)
Disconnect the Q25 multiplex network master switch assembly connector.
Disconnect the Q19 front multiplex network door ECU LH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH - FRONT MULTIPLEX NETWORK DOOR ECU LH)
Disconnect the Q17 front power window regulator motor assembly LH connector.
Disconnect the Q19 front multiplex network door ECU LH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH
Measure the voltage according to the value(s) in the table below.
Tech Tips
Check from the rear of the connector while it is connected to the front multiplex network door ECU LH.
| *a | Component with harness connected (Front Multiplex Network Door ECU LH) |
- | - |
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here |
| OK |
|
INSPECT FRONT DOOR MULTIPLEX NETWORK DOOR ECU LH
Remove the front multiplex network door ECU LH Click here.
| *1 | PWE |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH)
Disconnect the Q25 multiplex network master switch assembly connector.
Disconnect the Q17 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 |
|
INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH
Remove the front power window regulator motor LH Click here.
Inspect the front power window regulator motor LH Click here.
| OK |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| NG |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here |
CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH - BATTERY AND BODY GROUND)
| *a | Front view of wire harness connector (to Front Multiplex Network Door ECU RH) |
Disconnect the front multiplex network door ECU RH connector.
Measure the voltage and resistance according to the value(s) in the table below.
| Standard Voltage | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT MULTIPLEX NETWORK DOOR ECU RH)
Disconnect the Q10 multiplex network master switch assembly connector.
Disconnect the Q4 front multiplex network door ECU RH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH - FRONT MULTIPLEX NETWORK DOORECU RH)
Disconnect the Q2 front power window regulator motor assembly RH connector.
Disconnect the Q4 front multiplex network door ECU RH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH
Measure the voltage according to the value(s) in the table below.
Tech Tips
Check from the rear of the connector while it is connected to the front multiplex network door ECU RH.
| *a | Component with harness connected (Front Multiplex Network Door ECU RH) |
- | - |
| Standard Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here |
| OK |
|
INSPECT FRONT MULTIPLEX NETWORK DOOR ECU RH
Remove the front multiplex network door ECU RH Click here.
| *1 | PWE |
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTORASSEMBLY RH)
Disconnect the Q10 multiplex network master switch assembly connector.
Disconnect the Q2 power window regulator motor assembly RH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH
Remove the front power window regulator motor RH Click here.
Inspect the front power window regulator motor RH Click here.
| OK |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| NG |
|
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here |