Manual Up / Down Function does not Operate on Back Door Only [08/2015 - 08/2022]: Procedure

1. Check the back door switch.

   Result	Proceed to
   All back door switches do not operate	A
   Back door power window regulator switch does not operate	B
   Tail gate control switch does not operate	C
   Back door control switch does not operate	D

Result: 

B 

See step  8

Result: 

C 

GO TO POWER DOOR LOCK CONTROL SYSTEM 

(Refer to All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder [08/2015 - 08/2019] , or refer to All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder [08/2019 - 08/2022] )

Result: 

D 

GO TO SMART KEY SYSTEM (for Entry Function) 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] , or refer to PROBLEM SYMPTOMS TABLE [08/2019 - ] )

Result: 

A 

See step  2

1. Use the Data List to check if the back door courtesy light switch is functioning properly (Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] , or refer to DATA LIST / ACTIVE TEST [08/2019 - 08/2022] ).
   BACK DOOR P/W
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Back Door Courtesy Switch	Back door courtesy light switch signal / ON or OFF	ON: Back door open OFF: Back door closed	-

   OK

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

Result: 

NG 

GO TO LIGHTING SYSTEM 

(Refer to Back Door Courtesy Switch Circuit [08/2015 - ] )

Result: 

OK 

See step  3

1. Use the Data List to check if the rear wiper is functioning properly (Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] , or refer to DATA LIST / ACTIVE TEST [08/2019 - 08/2022] ).
   BACK DOOR P/W
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Wiper Retracted Position	Rear wiper reverse position switch signal / ON or OFF	ON: Rear wiper reverse position switch is in ON position OFF: Rear wiper reverse position switch is in OFF position	-
   Wiper Reverse Position	Rear wiper reverse position switch signal / ON or OFF	ON: Rear wiper in reverse position OFF: Rear wiper in other position	-

   OK

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

Result: 

NG 

GO TO REAR WIPER SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ] )

Result: 

OK 

See step  4

1. Check if DTC B2312 is output. (Refer to DTC CHECK / CLEAR [08/2015 - ] ).

   OK

   DTC B2312 is not output.

Result: 

NG 

GO TO DTC B2312 

(Refer to DTC B2312: Back Door Power Window Switch ON Stuck [08/2015 - ] )

Result: 

OK 

See step  5

1. Select the Active Test, use the Techstream to generate a control command, and then check that the door window regulator operates (Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] , or refer to DATA LIST / ACTIVE TEST [08/2019 - 08/2022] ).
   BACK DOOR P/W
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Back Door power Window	Back door power window	OFF/UP/DOWN	-

   OK

   The power window regulator operates normally.

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

See step  6

1. Remove the back door power window regulator motor (Refer to REMOVAL [08/2015 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Check that the back door power window regulator motor moves smoothly as follows.
   NOTE:

   • Do not apply positive (+) battery voltage to any terminal other than terminal 2 (B) to avoid damaging the pulse sensor inside the motor.
   • Reset the door window regulator (initialize the pulse sensor) after installing the door window regulator to the door.

   Measurement Condition	Specified Condition
   Connect the positive (+) battery terminal to terminal 2 (B), and connect the negative (-) battery terminal to terminal 1 (GND), and keep them connected for 3 seconds or more. With terminals 2 (B) and 1 (GND) connected to the battery, connect the negative (-) battery terminal to terminal 10 (UP). Disconnect and reconnect the negative (-) battery terminal to terminal 10 (UP) within 1 second.	Motor gear rotates clockwise (Up)
   Connect the positive (+) battery terminal to terminal 2 (B), and connect the negative (-) battery terminal to terminal 1 (GND), and keep them connected for 3 seconds or more. With terminals 2 (B) and 1 (GND) connected to the battery, connect the negative (-) battery terminal to terminal 7 (DOWN). Disconnect and reconnect the negative (-) battery terminal to terminal 7 (DOWN) within 1 second.	Motor gear rotates counterclockwise (Down)

   TEXT IN ILLUSTRATION
   
   

   *1	Motor Gear
   	Clockwise
   	Counterclockwise

Result: 

NG 

REPLACE BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )

Result: 

OK 

See step  7

1. Disconnect the W9 back door power window regulator motor connector.
2. Disconnect the W10 multiplex network door ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   W9-10 (UP) - W10-14 (BUP2)	Always	Below 1 Ω
   W9-7 (DOWN) - W10-13 (BDN2)	Always	Below 1 Ω
   W9-10 (UP) - Body ground	Always	10 kΩ or higher
   W9-7 (DOWN) - Body ground	Always	10 kΩ or higher

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Remove the back door power window regulator switch (Refer to INSPECTION [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
   6 (UP) - 1 (E)	Manual up operation	Below 1 Ω
   7 (DOWN) - 1 (E)	Manual down operation	Below 1 Ω
   6 (UP) - 1 (E)	Not operated	10 kΩ or higher
   7 (DOWN) - 1 (E)	Not operated	10 kΩ or higher

Result: 

NG 

REPLACE BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )

Result: 

OK 

See step  9

1. Disconnect the f1 back door power window regulator switch connector.
2. Disconnect the V2 multiplex network door ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   f1-6 (UP) - V2-22 (BUP)	Always	Below 1 Ω
   f1-7 (DOWN) - V2-23 (BDN)	Always	Below 1 Ω
   f1-1 (E) - Body ground	Always	Below 1 Ω
   f1-6 (UP) - Body ground	Always	10 kΩ or higher
   f1-7 (DOWN) - Body ground	Always	10 kΩ or higher

Result: 

OK 

REPLACE MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W) 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR