Toyota Venza manuals

Toyota Venza: Power Back Door cannot be Closed Using the Power Back Door Closer Switch

Toyota Venza Service Manual / Door / Hatch / Power Back Door System / Power Back Door cannot be Closed Using the Power Back Door Closer Switch

DESCRIPTION

When the power back door cannot be closed using the power back door closer switch, either of the following may be malfunctioning: 1) power back door closer switch circuit or 2) power back door ECU (power back door motor unit).

WIRING DIAGRAM


PROCEDURE

1.

READ VALUE USING TECHSTREAM (POWER BACK DOOR CLOSER SWITCH)

(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 / Back Door / Data List.

(e) Check the Data List to determine if the power back door closer switch functions properly.

Back Door (Power Back Door ECU)

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

PBD Close SW

Power back door closer switch signal / ON or OFF

ON: Power back door closer switch on

OFF: Power back door closer switch off

-

OK:

The power back door closer switch functions as specified in the normal condition column.


OK

REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT)


NG

2.

INSPECT POWER BACK DOOR CLOSER SWITCH

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



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

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 - 1

Pushed (on)

Below 1 Ω

4 - 1

Free (off)

10 kΩ or higher

Text in Illustration

*1

Component without harness connected

(Power Back Door Closer Switch)


NG

REPLACE POWER BACK DOOR CLOSER SWITCH


OK

3.

CHECK HARNESS AND CONNECTOR (POWER BACK DOOR CLOSER SWITCH - POWER BACK DOOR ECU)

(a) Disconnect the R17 power back door closer switch and L20 power back door ECU connectors.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

R17-4 (CLS) - L20-4 (DS1)

Always

Below 1 Ω

R17-1 (E) - Body ground

Always

Below 1 Ω

R17-4 (CLS) - Body ground

Always

10 kΩ or higher


OK

REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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