Driver Side Power Window does not Operate with Power Window Master Switch: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the Data List according to the display on the Techstream.
   MAIN BODY (MAIN BODY ECU (INSTRUMENT PANEL J/B))
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Communication D-Door Motor	Connection status between power window regulator motor (for driver side) and main body ECU (instrument panel J/B) / OK or STOP	OK: Normal communication STOP: Communication stopped	-

   OK

   On the Techstream screen, OK is displayed.

NG → See step   8 

OK: Go to next step 

1. Enter the following menus: Body Electrical / D-Door Motor / Data List.
2. Read the Data List according to the display on the Techstream.
   D-DOOR MOTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER SIDE))
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door P/W Up SW	Driver side power window manual up switch signal / ON or OFF	ON: Driver door power window manual up switch operated OFF: Driver door power window manual up switch not operated	-
   D Door P/W Down SW	Driver side power window manual down switch signal / ON or OFF	ON: Driver door power window manual down switch operated OFF: Driver door power window manual down switch not operated	-

   OK

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

NG → See step   4 

OK: Go to next step 

1. Enter the following menus: Body Electrical / D-Door Motor / Active Test.
2. Perform the Active Test according to the display on the Techstream.
   D-DOOR MOTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER SIDE))
   
   

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

   OK

   Driver side power window operates normally.

   WARNING:

   Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate.

NG → See step   7 

OK → REPLACE MAIN BODY ECU (INSTRUMENT PANEL J/B) 

1. Disconnect the power window regulator master switch assembly connector.
   Fig 1: Identifying Power Window Regulator Master Switch & Motor Assembly Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the power window regulator motor assembly (for driver side) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M1-20 (UP) - I5-10 (UP)	Always	Below 1 Ω
   M1-15 (DOWN) - I5-7 (DOWN)	Always	Below 1 Ω
   M1-20 (UP) - Body ground	Always	10 kΩ or higher
   M1-15 (DOWN) - Body ground	Always	10 kΩ or higher
   I5-10 (UP) - Body ground	Always	10 kΩ or higher
   I5-7 (DOWN) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the power window regulator master switch assembly.

NEXT: Go to next step 

1. Check that the driver side door power window moves when the manual up/down function of the power window regulator master switch assembly is operated. Refer to OPERATION CHECK .

   OK

   Driver side manual up/down function is normal.

NG → See step   7 

OK → END (POWER WINDOW REGULATOR MASTER SWITCH WAS DEFECTIVE)