Toyota 4Runner manuals

Toyota 4Runner: Rear Power Window LH does not Operate with Rear Power Window Switch LH

Toyota 4Runner Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Rear Power Window LH does not Operate with Rear Power Window Switch LH

DESCRIPTION

  • If the manual up/down function does not operate, there may be a malfunction in the rear power window regulator switch, rear power window regulator motor, harness or connector.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT:

Since the power window control system has functions that use LIN communication, first confirm that there is no malfunction in the communication system by inspecting the LIN communication functions in accordance with the "How to Proceed with Troubleshooting" procedures. Then, conduct the following inspection procedure.

PROCEDURE

1.

CHECK FOR DTC (B2312)

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


OK:

DTC B2312 is not output.


NG

GO TO DTC B2312


OK

2.

READ VALUE USING TECHSTREAM (REAR POWER WINDOW REGULATOR SWITCH)

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


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.


NG

GO TO STEP 4


OK

3.

PERFORM ACTIVE TEST USING TECHSTREAM (POWER WINDOW)

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


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.


OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


NG

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

4.

INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

(a) Remove the rear 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 (GND)

Manual up operation

Below 1 Ω

7 (DOWN) - 1 (GND)

Manual down operation

Below 1 Ω

6 (UP) - 1 (GND)

Not operated

10 kΩ or higher

7 (DOWN) - 1 (GND)

Not operated

10 kΩ or higher


NG

REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH


OK

5.

CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH - BODY GROUND)

(a) Disconnect the j1 rear power window regulator switch connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

j1-1 (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)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

6.

CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH - REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH)

(a) Disconnect the j1 rear power window regulator switch connector.

(b) Disconnect the K2 power window regulator motor connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

j1-6 (UP) - K2-10 (UP)

Always

Below 1 Ω

j1-7 (DOWN) - K2-7 (DOWN)

Always

Below 1 Ω

j1-6 (UP) - Body ground

Always

10 kΩ or higher

j1-7 (DOWN) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

7.

CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH - BATTERY AND BODY GROUND)

(a) Disconnect the K2 power window regulator motor connector.


(b) Measure the voltage and resistance according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

K2-2 (B) - Body ground

Always

11 to 14 V

Standard Resistance:

Tester Connection

Condition

Specified Condition

K2-1 (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)


OK

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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