Toyota 4Runner: Manual Up / Down Function does not Operate on Back Door Only

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Manual Up / Down Function does not Operate on Back Door Only

DESCRIPTION

If the back door power window does not operate, the retract switch in the rear wiper motor, the back door power window regulator motor or the wire harness may be abnormal.

WIRING DIAGRAM

PROCEDURE

1.	SYSTEM CHECK

(a) 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

GO TO STEP 8

GO TO POWER DOOR LOCK CONTROL SYSTEM

GO TO SMART KEY SYSTEM (for Entry Function)

2.	CHECK LIGHTING SYSTEM (BACK DOOR COURTESY LIGHT SWITCH)

(a) Use the Data List to check if the back door courtesy light switch is functioning properly (See page ).

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	-

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.

GO TO LIGHTING SYSTEM

3.	CHECK REAR WIPER SYSTEM (REAR WIPER POSITION)

(a) Use the Data List to check if the rear wiper is functioning properly (See page ).

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	-

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.

GO TO REAR WIPER SYSTEM

4.	CHECK FOR DTC (B2312)

(a) Check if DTC B2312 is output (See page ).

OK:

DTC B2312 is not output.

GO TO DTC B2312

5.	PERFORM ACTIVE TEST USING TECHSTREAM (BACK DOOR POWER WINDOW)

(a) Select the Active Test, use the Techstream to generate a control command, and then check that the door window regulator operates (See page ).

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.

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

6.	INSPECT BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY

(a) Remove the back door power window regulator motor (See page ).

(b) Check that the back door power window regulator motor moves smoothly as follows.

NOTICE:

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

REPLACE BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY

7.	CHECK HARNESS AND CONNECTOR (BACK DOOR POWER WINDOW REGULATOR MOTOR ASSEMBLY - MULTIPLEX NETWORK DOOR ECU)

(a) Disconnect the W9 back door power window regulator motor connector.

(b) Disconnect the W10 multiplex network door ECU connector.

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

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.	INSPECT BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY

(a) Remove the back door power window regulator switch (See page ).

(b) 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

REPLACE BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY

9.	CHECK HARNESS AND CONNECTOR (BACK DOOR POWER WINDOW REGULATOR SWITCH ASSEMBLY - MULTIPLEX NETWORK DOOR ECU)

(a) Disconnect the f1 back door power window regulator switch connector.

(b) Disconnect the V2 multiplex network door ECU connector.

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

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

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