Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch: Procedure

1. Check for DTCs.
2. Connect Techstream to the DLC3.
3. By following the tester screen display, check whether any DTCs are output.
   RESULT
   
   

   Result	Proceed to
   No output	A
   DTC output	B

B → PROCEED TO INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC 

A: Go to next step 

1. Use the Data List to check the function of the power window master switch.
   D-DOOR MOTOR
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D P/W Auto Switch	Driver side power window AUTO switch signal / ON or OFF	ON: Driver side power window AUTO switch operates OFF: Driver side power window AUTO switch does not operate	-
   D P/W Up Switch	Driver side power window UP switch signal / ON or OFF	ON: Driver side power window UP switch operates OFF: Driver side power window UP switch does not operate	-
   D P/W Down Switch	Driver side power window DOWN switch signal / ON or OFF	ON: Driver side power window DOWN switch operates OFF: Driver side power window DOWN switch does not operate	-

   OK

   ON (switch operates) appears on screen.

NG → See step   3 

OK → See step   6 

1. Measure the resistance according to the value(s) in the table below.
   Fig 1: Checking Power Window Master Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Condition	Specified Condition
   8 (U) - 1 (E) - 4 (A)	Auto UP	Below 1 Ω
   4 (A) - 5 (D) - 1 (E)	Auto Down	Below 1 Ω

NG → See step   7 

OK: Go to next step 

1. Remove the DOOR NO. 2 fuse from the instrument panel junction block.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   DOOR NO. 2	Always	Below 1 Ω

NG → REPLACE FUSE (DOOR NO. 2) 

OK: Go to next step 

1. Disconnect the H8 and H1 connector.
   Fig 2: Checking Wire Harness (Master Switch - Regulator Motor)

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   H8-4 (A) - H1-4 (AUTO)	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6