Power Windows do not Operate at All: Procedure

1. Remove the POWER relay from the main body ECU.
   Fig 1: Identifying Power Relay

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2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Connection	Specified Condition
   3 - 5	Battery voltage not applied	10 kΩ or higher
   3 - 5	Battery voltage applied to terminals 1 and 2	Below 1 Ω

NG → REPLACE POWER RELAY 

OK: Go to next step 

1. Disconnect the H7 power window regulator master switch assembly connector.
   Fig 2: Identifying Master Switch Battery And Body Ground Connector Terminals

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H7-15 (B) - Body ground	Ignition switch ON	11 to 14 V

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H7-7 (E) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view wire harness connector (to Power Window Regulator Master Switch Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Inspect the power window regulator master switch assembly. Refer to INSPECTION

NG → See step   4 

OK → REPLACE MAIN BODY ECU