DESCRIPTION
When the power switch is on (IG), the power window regulator motor assembly (for driver door) is operated by the multiplex network master switch assembly. The power window regulator motor assembly (for driver door) has motor, regulator and ECU functions.
WIRING DIAGRAM
for LHD
for RHD
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.
If the power window regulator motor assembly (for driver door) has been replaced with a new one, initialize the power window control system.
Inspect the fuses for circuits related to this system before performing the following procedure.
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
PROCEDURE
READ VALUE USING GTS (MAIN BODY)
Connect the GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Main Body / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Communication D-Door Motor | Connection status between power window regulator motor assembly (for driver door) and main body ECU (multiplex network body ECU) | STOP or OK | STOP: Communication stopped OK: Normal communication |
- |
| Communication Master SW | Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU) | STOP or OK | STOP: Communication stopped OK: Normal communication |
- |
| Tester Display |
|---|
| Communication D-Door Motor |
| Communication Master SW |
| OK |
|---|
| On the GTS screen, OK is displayed. |
| Result | |||
|---|---|---|---|
|
| NG |
|
GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting) Click here |
| OK |
|
READ VALUE USING GTS (D-DOOR MOTOR)
Enter the following menus: Body Electrical / D-Door Motor / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| D Door P/W Up SW | Driver door power window manual up switch signal | OFF or ON | OFF: Driver door power window manual up switch not being operated ON: Driver door power window manual up switch being operated |
- |
| D Door P/W Down SW | Driver door power window manual down switch signal | OFF or ON | OFF: Driver door power window manual down switch not being operated ON: Driver door power window manual down switch being operated |
- |
| Tester Display |
|---|
| D Door P/W Up SW |
| D Door P/W Down SW |
| OK |
|---|
| On the GTS screen, ON or OFF is displayed accordingly. |
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR)) Click here |
| OK |
|
PERFORM ACTIVE TEST USING GTS (D-DOOR MOTOR)
Enter the following menus: Body Electrical / D-Door Motor / Active Test.
Perform the Active Test according to the display on the GTS.
CAUTION:
Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate.
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Power Window | Power window | OFF / DOWN / UP | - |
| Tester Display |
|---|
| Power Window |
| OK |
|---|
| Driver door power window operates normally. |
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
| NG |
|
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR) Click here |
CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR))
for LHD
Disconnect the N18*1 or N27*2 multiplex network master switch assembly connector.
*1: w/ Seat Position Memory System
*2: w/o Seat Position Memory System
Disconnect the N17 power window regulator motor assembly (for driver door) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||
|
for RHD
Disconnect the N3*1 or N12*2 multiplex network master switch assembly connector.
*1: w/ Seat Position Memory System
*2: w/o Seat Position Memory System
Disconnect the N2 power window regulator motor assembly (for driver door) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
Replace the multiplex network master switch assembly.
| Result | ||
|---|---|---|
|
| NEXT |
|
CHECK MANUAL UP / DOWN FUNCTION (FOR DRIVER DOOR)
Check that the driver door power window moves when the manual up and down function of the power window regulator master switch assembly is operated.
| OK |
|---|
| Driver door manual up and down function is normal. |
| Result | |||
|---|---|---|---|
|
| OK |
|
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) |
| NG |
|
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR) Click here |