Inspection Procedure

1. Disconnect the K4 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   2 (U) - 4 (A) - 5 (E)	Auto UP	Below 1 Ω
   2 (U) - 5 (E)	Manual UP	Below 1 Ω
   5 (E) - 10 (D)	Manual DOWN	Below 1 Ω
   4 (A) - 10 (D) - 5 (E)	Auto DOWN	Below 1 Ω

   Fig 1: Identifying K4 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE POWER WINDOW REGULATOR SWITCH 

OK: Go to next step. 

1. Disconnect the K3 and K4 connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   K3-4 (AUTO) - K4-4 (A)	Always	Below 1 Ω
   K3-5 (LED) - K4-8 (LED)	Always	Below 1 Ω
   K3-7 (DWN1) - K4-10 (D)	Always	Below 1 Ω
   K3-10 (UP1) - K4-2 (U)	Always	Below 1 Ω
   K3-4 (AUTO) - Body ground	Always	10 kΩ or higher
   K3-5 (LED) - Body ground	Always	10 kΩ or higher
   K3-7 (DWN1) - Body ground	Always	10 kΩ or higher
   K3-10 (UP1) - Body ground	Always	10 kΩ or higher

   Fig 2: Checking Wire Harness (Power Window Regulator Switch - Power Window ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: END