Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch

Toyota Tacoma 2015-2018 Service Manual / Window / Glass / Power Window Control System(w/ Jam Protection Function) / Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch

DESCRIPTION

When the engine is running or the ignition switch is ON, the front power window regulator motor assembly RH is operated by the front power window regulator switch assembly RH. The front power window regulator motor assembly RH has motor, regulator, and ECU functions.

HINT:

If the pulse sensor built into the front power window regulator motor assembly RH malfunctions, the power window control system enters fail-safe mode. The remote up/down and auto up/down functions cannot be operated during fail-safe mode. However, the power window can be closed by holding the front power window regulator switch assembly RH at the auto up position, and opened manually by pushing down the front power window regulator switch assembly RH.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION / NOTICE / HINT

NOTICE:

  • The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly (See page If the front power window regulator motor assembly RH has been replaced ).
  • If the front power window regulator motor assembly RH has been replaced with a new one, initialize the power window control system (See page Check that the window lock switch is off before performing the following ).
  • Check that the window lock switch is off before performing the following procedure.
  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

READ VALUE USING TECHSTREAM (MAIN BODY)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) Read the Data List according to the display on the Techstream.

Main Body (Main Body ECU)

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Communication P-Door Motor

Connection status between front power window regulator motor assembly RH and main body ECU / OK or STOP

OK: Normal communication

STOP: Communication stopped

-

OK:

On the Techstream screen, OK is displayed.

NG

GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting)

OK

2.

READ VALUE USING TECHSTREAM (P-DOOR MOTOR)

(a) Enter the following menus: Body Electrical / P-Door Motor / Data List.

(b) Read the Data List according to the display on the Techstream.

P-Door Motor (Front Power Window Regulator Motor Assembly RH)

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

P Door P/W Up SW

Front passenger side power window manual up switch signal / ON or OFF

ON: Front passenger side power window manual up switch operated

OFF: Front passenger power window manual up switch not operated

-

P Door P/W Down SW

Front passenger side power window manual down switch signal / ON or OFF

ON: Front passenger side power window manual down switch operated

OFF: Front passenger power window manual down switch not operated

-

OK:

On the Techstream screen, ON or OFF is displayed accordingly.

NG

GO TO STEP 4

OK

3.

PERFORM ACTIVE TEST USING TECHSTREAM (P-DOOR MOTOR)

(a) Enter the following menus: Body Electrical / P-Door Motor / Active Test.

(b) Perform the Active Test according to the display on the Techstream.

CAUTION:

Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function will not operate.

P-Door Motor (Front Power Window Regulator Motor Assembly RH)

Tester Display

Test Part

Control Range

Diagnostic Note

Power Window

Power window

OFF / UP / DOWN

-

HINT:

Up and down movement does not occur if the arrow is not pressed and held.

OK:

Front passenger side power window operates normally.

OK

REPLACE MAIN BODY ECU

NG

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

4.

INSPECT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

(a) Remove the front power window regulator switch assembly RH (See page ). ). (b) Inspect the front power window regulator switch assembly RH. ).

(b) Inspect the front power window regulator switch assembly RH.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

5 - 7

Auto up or manual up position

Below 1 Ω

4 - 7

Auto down or manual down position

Below 1 Ω

7 - 8

Auto down or manual down position

Below 1 Ω

4 - 5

Off

10 kΩ or higher

NG

REPLACE FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

OK

5.

CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH - FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH)

(a) Disconnect the P21 power window regulator switch assembly connector.

(b) Disconnect the P22 front power window regulator motor assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P21-5 (UP) - P22-10 (UP)

Always

Below 1 Ω

P21-4 (DOWN) - P22-7 (DOWN)

Always

Below 1 Ω

P21-7 (GND) - Body ground

Always

Below 1 Ω

P21-5 (UP) - Body ground

Always

10 kΩ or higher

P21-4 (DOWN) - Body ground

Always

10 kΩ or higher

P22-10 (UP) - Body ground

Always

10 kΩ or higher

P22-7 (DOWN) - Body ground

Always

10 kΩ or higher

OK

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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