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

      RL DOOR MOTOR: 

      INTELLIGENT TESTER RL DOOR MOTOR
      
      

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

   2. Techstream

      RL-Door Motor: 

      TECHSTREAM RL DOOR MOTOR
      
      

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

      OK: Tester display changes normally when rear power window switch LH is operated. 

NG: Go to step 4 

OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH) (See  REMOVAL   ) 

1. Disconnect the O15 ECU connector.
2. Disconnect the O18 switch connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   REAR DOOR ECU LH - REAR SWITCH LH
   
   

   Tester Connection	Condition	Specified Condition
   O15-25 (SGND) -O18-5 (GND)	Always	Below 1 Ω
   O15-25 (SGND) or O18-5 (GND) - Body ground	Always	10 kΩ or higher

   Fig 1: Checking Harness And Connector (Rear Door ECU LH - Rear Switch LH)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the O14 ECU connector.
2. Disconnect the O19 motor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   REAR DOOR ECU LH - REAR MOTOR LH
   
   

   Tester Connection	Condition	Specified Condition
   O14-5 (BDRJ) -O19-2 (B)	Always	Below 1 Ω
   O14-2 (PWE) - O19-1 (E)	Always	Below 1 Ω
   O14-5 (BDRJ) or O19-2 (B) - Body ground	Always	10 kΩ or higher
   O14-2 (PWE) or O19-1 (E) - Body ground	Always	10 kΩ or higher

   Fig 2: Checking Harness And Connector (Rear Door ECU LH - Rear Motor LH)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: GO TO NEXT STEP 

1. Disconnect the O18 switch connector.
2. Disconnect the O19 motor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   REAR SWITCH LH - REAR MOTOR LH
   
   

   Tester Connection	Condition	Specified Condition
   O18-2 (UP)-O19-10 (UP1)	Always	Below 1 Ω
   O18-10 (DOWN)-O19-7 (DWN1)	Always	Below 1 Ω
   O18-2 (UP) or O19-10 (UP1) - Body ground	Always	10 kΩ or higher
   O18-10 (DOWN) or O19-7 (DWN1)-Body ground	Always	10 kΩ or higher

   Fig 3: Checking Harness And Connector (Rear Switch LH - Rear Motor LH)

   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 REAR LH)
   
   

   Tester Connection	Switch Condition	Specified Condition
   O18-2 (UP) -O18-5 (GND)	Manual UP operation	Below 1 Ω
   O18-10 (DOWN)-O18-5 (GND)	Manual DOWN operation	Below 1 Ω

   Fig 4: Inspecting Power Window Regulator Switch Assembly (For Rear LH)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH) (See  REMOVAL   ) 

OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH) (See  REMOVAL   )