Power Window Control System Driver Side Power Window Does Not Operate With Power Window Master Switch

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (MAIN BODY)

READ VALUE USING GTS (D-DOOR MOTOR)

PERFORM ACTIVE TEST USING GTS (D-DOOR MOTOR)

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH)

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

CHECK MANUAL UP / DOWN FUNCTION (FOR DRIVER DOOR)

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH)

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

CHECK MANUAL UP / DOWN FUNCTION

DESCRIPTION

1. When the ignition switch is ON, the front power window regulator motor assembly LH (for LHD) or front power window regulator motor assembly RH (for RHD) is operated by the multiplex network master switch assembly. The front power window regulator motor assembly LH (for LHD) or front power window regulator motor assembly RH (for RHD) has motor, regulator and ECU functions.
   

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. 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 (LandCruiser RM000000PY206VX.html).
   
2. If the front power window regulator motor assembly LH (for LHD) or front power window regulator motor assembly RH (for RHD) has been replaced with a new one, initialize the power window control system (LandCruiser RM0000011V20BLX.html).
   
3. Inspect the fuses for circuits related to this system before performing the following procedure.
   

1. Read the Data List according to the display on the GTS (LandCruiser RM0000027QL04NX.html).
   
   

   Main Body

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Communication D-Door Motor	Connection status between front power window regulator motor assembly LH (for LHD) or front power window regulator motor assembly RH (for RHD) and main body ECU (multiplex network body ECU) / OFF or ON	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: Communication stopped OK: Normal communication	-

   OK:

   On the GTS screen, OK is displayed.
   

1. Read the Data List according to the display on the GTS (LandCruiser RM0000027QL04NX.html).
   
   

   D-Door Motor

   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	-

   OK:

   On the GTS screen, ON or OFF is displayed accordingly.
   

   Result

   Result	Proceed to
   OK	A
   NG (for LHD)	B
   NG (for RHD)	C

1. Perform the Active Test according to the display on the GTS (LandCruiser RM0000027QL04NX.html).
   

   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.

   
   

   D-Door Motor

   Tester Display	Test Part	Control Range	Diagnostic Note
   Power Window	Power window	OFF/UP/DOWN	-

   HINT:

   Up and down movement does not occur if the arrow is not pressed and held

   OK:

   Driver door power window operates normally.
   

   Result

   Result	Proceed to
   OK	A
   NG (for LHD)	B
   NG (for RHD)	C

1. Disconnect the K4 multiplex network master switch assembly connector.
   

2. Disconnect the K7 front power window regulator motor assembly LH connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   K4-20 (UP) - K7-10 (UP)	Always	Below 1 Ω
   K4-15 (DOWN) - K7-7 (DOWN)	Always	Below 1 Ω
   K4-20 (UP) or K7-10 (UP) - Body ground	Always	10 kΩ or higher
   K4-15 (DOWN) or K7-7 (DOWN) - Body ground	Always	10 kΩ or higher

1. Replace the multiplex network master switch assembly (LandCruiser RM000002STU0ARX.html).
   

1. Check that the driver door power window moves when the manual up and down function of the multiplex network master switch assembly is operated (LandCruiser RM0000016810FQX.html).
   

   OK:

   Driver door manual up and down function is normal.
   

1. Disconnect the J9 multiplex network master switch assembly connector.
   

2. Disconnect the J7 front power window regulator motor assembly RH connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   J9-20 (UP) - J7-10 (UP)	Always	Below 1 Ω
   J9-15 (DOWN) - J7-7 (DOWN)	Always	Below 1 Ω
   J9-20 (UP) - Body ground	Always	10 kΩ or higher
   J9-15 (DOWN) - Body ground	Always	10 kΩ or higher

1. Replace the multiplex network master switch assembly (LandCruiser RM000002STU0ARX.html).
   

1. Check that the driver door power window moves when the manual up and down function of the multiplex network master switch assembly is operated (LandCruiser RM0000016810FQX.html).
   

   OK:

   Driver door manual up and down function is normal.