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

1. Check that the manual UP/DOWN functions operate normally.

   OK: Manual UP/DOWN functions operate normally. 

NG : OTHER PROBLEM 

OK : GO TO NEXT STEP 

1. Turn the engine switch on (IG).
2. Operate the master switch assembly's driver side switch for 2 seconds or more.
3. Check the blinking pattern of the AUTO light. Compare the blinking pattern with the illustration below.
   Fig 2: Identifying Light Of Multiplex Network Master Switch Assembly (Auto Light)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 3: AUTO Light Blinking Pattern Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result: 

   BLINKING PATTERN SPECIFICATION
   
   

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

B : Go to step   4 

C : REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 

A : GO TO NEXT STEP 

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

   OK: Power window operates normally. 

NG : Go to step 4 

OK : END 

1. Disconnect the R5 master switch connector.
2. Disconnect the N5 power window motor connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION SPECIFICATION CHART
   
   

   Tester Connection	Specified Condition
   R5-19 (VCC) - N5-4 (SSRB)	Below 1 Ω
   R5-5 (PLS1) - N5-5 (PLS)	Below 1 Ω
   R5-15 (PLS2) - N5-3 (PLS2)	Below 1 Ω
   R5-12 (SGND) - N5-6 (E)	Below 1 Ω
   R5-19 (VCC) or N5-4 (SSRB) - Body ground	10 kΩ or higher
   R5-5 (PLS1) or N5-5 (PLS) - Body ground	10 kΩ or higher
   R5-15 (PLS2) or N5-3 (PLS2) - Body ground	10 kΩ or higher
   R5-12 (SGND) or N5-6 (E) - Body ground	10 kΩ or higher

   Fig 4: Identifying Wire Harness (Master Switch Assembly - Front Motor Assembly LH

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

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