Inspection Procedure

1. Check for LIN communication system DTCs related to the power window control system.

   Result: 

   LIN COMMUNICATION SYSTEM
   
   

   Result	Proceed to
   DTC is output	A
   DTC is not output	B

A: GO TO LIN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

B: GO TO NEXT STEP 

1. Check if DTC B2312 is output.

   Result: 

   FOR DTC (B2312)
   
   

   Result	Proceed to
   DTC is output	A
   DTC is not output	B

A: GO TO  DTC B2312  

B: GO TO NEXT STEP 

1. Use the Data List to check if the power window regulator motor is functioning properly.
   1. Intelligent tester

      P DOOR MOTOR: 

      INTELLIGENT TESTER P DOOR MOTOR
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      P P/W UP SW	Front passenger side power window remote manual UP switch signal / ON or OFF	ON: Front passenger side power window remote manual UP switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-
      P P/W DOWN SW	Front passenger side power window remote manual DOWN switch signal / ON or OFF	ON: Front passenger side power window remote manual DOWN switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-

   2. Techstream

      P-Door Motor: 

      TECHSTREAM P DOOR MOTOR
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      P Door P/W Up SW	Front passenger side power window remote manual UP switch signal / ON or OFF	ON: Front passenger side power window remote manual UP switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-
      P Door P/W Down SW	Front passenger side power window remote manual DOWN switch signal / ON or OFF	ON: Front passenger side power window remote manual DOWN switch on master switch operated OFF: Front passenger side power window switch on master switch not operated	-

      OK: Tester display changes normally when front passenger side power window switch is operated. 

NG: Go to step 4 

OK: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Front Passenger Side) (See  REMOVAL   ) 

1. Disconnect the P4 ECU connector.
2. Disconnect the N6 switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   FRONT PASSENGER SIDE DOOR ECU - FRONT PASSENGER SIDE SWITCH
   
   

   Tester Connection	Condition	Specified Condition
   P4-27 (SGND) - N6-5 (GND)	Always	Below 1 Ω
   P4-27 (SGND) or N6-5 (GND) - Body ground	Always	10 kΩ or higher

   Fig 1: Checking Harness And Connector (Front Passenger Side Door ECU - Front Passenger Side Switch)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the N1 ECU connector.
2. Disconnect the N3 motor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   FRONT PASSENGER SIDE DOOR ECU - FRONT PASSENGER SIDE MOTOR
   
   

   Tester Connection	Condition	Specified Condition
   N1-5(BDRJ) - N3-2(B)	Always	Below 1 Ω
   N1-2(PWE) - N3-1 (E)	Always	Below 1 Ω
   N1-5(BDRJ) or N3-2(B) - Body ground	Always	10 kΩ or higher
   N1-2(PWE) or N3-1(E)-Body ground	Always	10 kΩ or higher

   Fig 2: Checking Harness And Connector (Front Passenger Side Door ECU - Front Passenger Side Motor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the N6 switch connector.
2. Disconnect the N3 motor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   FRONT PASSENGER SIDE SWITCH - FRONT PASSENGER SIDE MOTOR
   
   

   Tester Connection	Condition	Specified Condition
   N6-2 (UP) - N3-10 (UP1)	Always	Below 1 Ω
   N6-10 (DOWN) - N3-7 (DWN1)	Always	Below 1 Ω
   N6-2(UP) or N3-10 (UP1)-Body ground	Always	10 kΩ or higher
   N6-10 (DOWN) or N3-7 (DWN1)-Body ground	Always	10 kΩ or higher

   Fig 3: Checking Harness And Connector (Front Passenger Side Switch - Front Passenger Side Motor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

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

   Standard resistance 

   POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR FRONT PASSENGER SIDE)
   
   

   Tester Connection	Switch Condition	Specified Condition
   N6-2 (UP) - N6-5 (GND)	Manual UP operation	Below 1 Ω
   N6-10 (DOWN) - N 6-5 (GND)	Manual DOWN operation	Below 1 Ω

   Fig 4: Inspecting Power Window Regulator Switch Assembly (For Front Passenger Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Front Passenger Side) (See  REMOVAL   ) 

OK: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Front Passenger Side) (See  REMOVAL   )