Inspection Procedure

1. Turn the window lock switch OFF and operate the passenger side power window switch on the power window regulator master switch. Check that the remote UP/DOWN function operates normally.

   OK: 

   Remote UP/DOWN function operates normally. 

OK: END 

Fig 1: Identifying Window Lock Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to next step 

1. Check that the power window can be operated with the power window regulator switch.

   OK: 

   Manual UP/DOWN function operates normally. 

NG: GO TO PROBLEM SYMPTOMS TABLE 

OK: Go to next step 

1. Check that the power window can be operated with the power window regulator switch.

   OK: 

   AUTO UP/DOWN function operates normally. 

NG: GO TO PROBLEM SYMPTOMS TABLE 

OK: Go to next step 

1. Disconnect the P12 regulator switch connector.
2. Turn the ignition switch ON.
3. Using an oscilloscope, check the waveform of the connector.

   Standard: 

   The waveform is as shown in the illustration. 

   WAVEFORM REFERENCE
   
   

   Tester Connection	Tool Setting	Condition
   P12-2 (MPX1) - P12-7 (GND)	10V/DIV., 1 msec./DIV.	Operating passenger side switch on master switch

OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (PASSENGER SIDE) 

Fig 2: Identifying P12 Regulator Switch Connector Terminals With Waveform

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to next step 

1. Disconnect the P12 regulator switch connector.
2. Disconnect the P9 regulator master switch connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   P12-2 (MPX1) - P9-7 (MPX1)	Below 1 Ω
   P12-2 (MPX1) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 3: Identifying P12 Regulator Switch And P9 Regulator Master Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Remove the master switch but do not disconnect the connector.
2. Turn the ignition switch ON.
3. Measure the voltage of the connector.

   Standard voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   P9-6 (PCT) - Body ground	Window LOCK switch OFF (Normal)	11 to 14 V
   P9-6 (PCT) - Body ground	Window LOCK switch ON (Lock)	Below 1 V

   Fig 4: Identifying Power Window Regulator Master Switch Connector Terminals (Window Lock Switch)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 

OK: REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY