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 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 1: Identifying AUTO Light Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Identifying Blinking Pattern

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result: 

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 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 SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   Q13-19 (VCC) - M1-M (SSEB)	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 (SSEB) - 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 (Master Switch Assembly - Front Motor Assembly LH (Driver Side))

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

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