Inspection Procedure

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 power switch ON (IG).
2. Operate the master switch's driver side switch for 2 seconds or more.
   Fig 1: Checking Light Of Multiplex Network Master Switch Assembly (Auto Light)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the blinking pattern of the AUTO light. Compare the blinking pattern with the illustration below.
   Fig 2: AUTO Light Blinking Pattern Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT REFERENCE
   
   

   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. 

OK: END 

NG: GO TO Next Step 

1. Disconnect the Q13 master switch connector.
2. Disconnect the M11 power window motor connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   Q13-19 (VCC) - M11-4 (SSRB)	Below 1 Ω
   Q13-5 (PLS1) - M11-5 (PLS)	Below 1 Ω
   Q13-15 (PLS2) - M11-3 (PLS2)	Below 1 Ω
   Q13-12 (SGND) - M11-6(E)	Below 1 Ω
   Q13-19 (VCC) or M11-4 (SSRB) - Body ground	10 kΩ or higher
   Q13-5 (PLS1) or M11-5 (PLS) - Body ground	10 kΩ or higher
   Q13-15 (PLS2) or M11-3 (PLS2) - Body ground	10 kΩ or higher
   Q13-12 (SGND) or M11-6 (E) - Body ground	10 kΩ or higher

Fig 3: Checking Wire Harness (Power Window Master Switch - Power Window Motor)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Side)