Inspection Procedure

1. Check for LIN communication system DTCs related to the power window control system (See DTC CHECK / CLEAR ).

   OK: LIN communication system DTCs are not output. 

NG: GO TO LIN COMMUNICATION SYSTEM  (See DIAGNOSTIC TROUBLE CODE CHART )

OK: Go to next step 

1. Check if DTC B2312 is output (See DTC CHECK / CLEAR  ).

   OK: DTC B2312 is not output. 

NG: GO TO DTC B2312  (See DTC B2312 POWER WINDOW SWITCH MALFUNCTION  )

OK: Go to next step 

1. Use the Data List to check if the power window regulator motor is functioning properly (See DATA LIST / ACTIVE TEST  ).

   RR-Door Motor 

   ITEM RANGE REFERENCE
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RR Door P/W Up SW	Rear power window RH manual up signal / ON or OFF	ON: Rear power window RH manual up switch operated OFF: Rear power window RH switch not operated	-
   RR Door P/W Down SW	Rear power window RH manual down signal / ON or OFF	ON: Rear power window RH manual down switch operated OFF: Rear power window RH switch not operated	-

   OK: Techstream display changes according to operation of rear power window switch RH. 

NG: Go to step 4 

OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH  (See REMOVAL  )

1. Disconnect the J3 switch connector.
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   J3-5 (GND) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 1: Identifying J3 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Disconnect the J4 motor connector.
2. Measure the voltage and resistance according to the value (s) in the table below.

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J4-2 (B) - Body ground	Always	11 to 14 V

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   J4-1 (GND) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Identifying J4 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Disconnect the J3 switch connector.
2. Disconnect the J4 motor connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   J3-2 (UP) - J4-10 (UP)	Always	Below 1 Ω
   J3-10 (DOWN) - J4-7 (DOWN)	Always	Below 1 Ω
   J3-4 (AUTO) - J4-4 (AUTO)	Always	Below 1 Ω
   J3-2 (UP) or J4-10 (UP) - Body ground	Always	10 kΩ or higher
   J3-10 (DOWN) or J4-7 (DOWN) - Body ground	Always	10 kΩ or higher
   J3-4 (AUTO) or J4-4 (AUTO) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 3: Identifying J4 And J3 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Remove the rear power window regulator switch RH (See REMOVAL  ).
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   J3-2 (UP) - J3-5 (GND)	Manual up operation	Below 1 Ω
   J3-10 (DOWN) - J3-5 (GND)	Manual down operation	Below 1 Ω

NG: REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH  (See REMOVAL  )

Fig 4: Identifying Rear Power Window Regulator Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH  (See REMOVAL  )