Rear Power Window LH does not Operate with Rear Power Window Switch LH [08/2015 - 08/2019]: Procedure

1. Check if DTC B2312 is output (Refer to DTC B2312: Power Window Switch Malfunction [08/2015 - ] ).

   OK

   DTC B2312 is not output.

Result: 

NG 

GO TO DTC B2312 

(Refer to DTC B2312: Power Window Switch Malfunction [08/2015 - ] )

Result: 

OK 

See step  2

1. Use the Data List to check if the rear power window regulator is functioning properly (Refer to DATA LIST / ACTIVE TEST [08/2015 - ] ).
   RL-DOOR MOTOR
   
   

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

   OK

   On tester screen, each item changes between ON and OFF according to above chart.

Result: 

NG 

See step  4

Result: 

OK 

See step  3

1. Select the Active Test, use the Techstream to generate a control command, and then check that power window regulator motor operates (Refer to DATA LIST / ACTIVE TEST [08/2015 - ] ).
   RL-DOOR MOTOR
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Power Window	Rear LH side power window	OFF/UP/DOWN	-

   OK

   The power window regulator motor operates normally.

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

(Refer to REMOVAL [08/2015 - 08/2019] )

Result: 

NG 

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )

1. Remove the rear power window regulator switch (Refer to REMOVAL [08/2015 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   2 (UP) - 5 (GND)	Manual up operation	Below 1 Ω
   10 (DOWN) - 5 (GND)	Manual down operation	Below 1 Ω
   2 (UP) - 5 (GND)	Not operated	10 kΩ or higher
   10 (DOWN) - 5 (GND)	Not operated	10 kΩ or higher

Result: 

NG 

REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )

Result: 

OK 

See step  5

1. Disconnect the M2 rear power window regulator switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M2-5 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Rear Power Window Regulator Switch Assembly LH)

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the M2 rear power window regulator switch connector.
2. Disconnect the M4 power window regulator motor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M2-2 (UP) - M4-10 (UP)	Always	Below 1 Ω
   M2-10 (DOWN) - M4-7 (DOWN)	Always	Below 1 Ω
   M2-2 (UP) - Body ground	Always	10 kΩ or higher
   M2-10 (DOWN) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Disconnect the M4 power window regulator motor connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   M4-2 (B) - Body ground	Always	11 to 14 V

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M4-1 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Rear Power Window Regulator Motor Assembly LH)

Result: 

OK 

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR