Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH: 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 / RL-Door Motor / Data List.
5. Read the Data List according to the display on the Techstream.
   RL-DOOR MOTOR (REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH)
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RL Door P/W Auto SW	Rear LH side power window auto switch signal / ON or OFF	ON: Rear LH side power window auto switch operated OFF: Rear LH side power window auto switch not operated	-

   OK

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

NG → See step   4 

OK: Go to next step 

1. Initialize the rear power window regulator motor assembly LH. Refer to INITIALIZATION .

NEXT: Go to next step 

1. Check that the rear LH side power window moves when the auto up/down function of the rear power window regulator switch assembly LH is operated. Refer to OPERATION CHECK .

   OK

   Rear LH side auto up/down function is normal.

NG → See step   6 

OK → END (PROBLEM DUE TO INITIALIZATION FAILURE) 

1. Remove the rear power window regulator switch assembly LH. Refer to REMOVAL .
   Fig 1: Inspecting Power Window Regulator Switch Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   8 (AUTO) - 1 (GND)	Auto up or auto down position	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Rear Power Window Regulator Switch Assembly LH)

NG → See step   7 

OK: Go to next step 

1. Disconnect the rear power window regulator motor assembly LH connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J1-8 (AUTO) - J7-4 (AUTO)	Always	Below 1 Ω
   J1-8 (AUTO) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6