Inspection Procedure

1. Check if the manual UP/DOWN function operates normally.

   OK: Manual UP/DOWN function operates normally. 

NG: OTHER PROBLEM (See  PROBLEM SYMPTOMS TABLE   ) 

OK: Go to next step. 

1. Turn the power switch ON (IG).
2. Operate the master switch assembly's driver side switch for 2 seconds or more shown in the illustration on the left.
3. Check the blinking pattern of the AUTO lamp. Compare the blinking pattern with the illustration below.
   Fig 1: Identifying Driver Side Auto Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 2: Reading Blinking Pattern Of Auto Lamp

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result: 

   BLINKING PATTERN
   
   

   Blinking Pattern	Proceed to
   1	A
   2 or 3	B
   4	C

B: Go to step   4 

C: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

A: Go to next step. 

1. Check if the power window operates normally after the reset.

   OK: Power window operates normally. 

NG: Go to step 4 

OK: END 

1. Disconnect the P17 master switch connector.
2. Disconnect the P18 power window motor connector.
3. Measure the resistance of the wire harness side connectors.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   P17-3 (VCC) - P18-4 (SSRB)	Below 1 Ω
   P17-14 (PLS) - P18-5 (PLS)	Below 1 Ω
   P17-17 (PLS2) - P18-3 (PLS2)	Below 1 Ω
   P17-2 (SGND) - P18-6 (E)	Below 1 Ω
   P17-3 (VCC) - Body ground	10 kΩ or higher
   P17-14 (PLS) - Body ground	10 kΩ or higher
   P17-17 (PLS2) - Body ground	10 kΩ or higher

Fig 3: Locating Power Window Regulator Master Switch Assembly And Power Window Regulator Motor Assembly LH

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSY FRONT LH (DRIVER SIDE)