Toyota Venza manuals

Toyota Venza: Sliding Roof does not Move by Operating Sliding Roof Control Switch

Toyota Venza Service Manual / Sliding Roof / Convertible / Sliding Roof System / Sliding Roof does not Move by Operating Sliding Roof Control Switch

DESCRIPTION

The sliding roof ECU (sliding roof drive gear sub-assembly) receives switch slide and tilt signals and drives its built-in motor.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  • When the sliding roof ECU (sliding roof drive gear sub-assembly) is reinstalled or replaced, the sliding roof drive gear sub-assembly must be initialized (See page ).

  • Since the sliding roof system uses 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 procedure (See page ). Then, conduct
    the following inspection procedure.

PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM (SLIDING ROOF OPERATION)

(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 / Sliding Roof / Active Test.

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

Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

Tester Display

Test Part

Control Range

Diagnostic Note

Slide Roof

Operate sliding roof

CLOS/UP / OFF

-

Slide Roof

Operate sliding roof

OPN/DWN / OFF

-

OK:

Sliding roof operates normally.


NG

GO TO STEP 3


OK

2.

READ VALUE USING TECHSTREAM

(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 / Sliding Roof / Data List.

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

Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Open SW

SLIDE OPEN switch signal/ON or OFF

ON: SLIDE OPEN switch pressed

OFF: SLIDE OPEN switch not pressed

-

Close SW

SLIDE CLOSE switch signal/ON or OFF

ON: SLIDE CLOSE switch pressed

OFF: SLIDE CLOSE switch not pressed

-

Up SW

TILT UP switch signal/ON or OFF

ON: TILT UP switch pressed

OFF: TILT UP switch not pressed

-

Down SW

TILT DOWN switch signal/ON or OFF

ON: TILT DOWN switch pressed

OFF: TILT DOWN switch not pressed

-

OK:

The Techstream display changes according to switch operation as shown in the table.


OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)


NG

GO TO STEP 4

3.

CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - BATTERY, BODY GROUND)

(a) Disconnect the P4 ECU connector.


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

Standard Voltage:

Tester Connection

Condition

Specified Condition

P4-1 (B) - Body ground

Always

11 to 14 V

P4-5 (IG) - Body ground

Ignition switch ON

11 to 14 V

P4-5 (IG) - Body ground

Ignition switch off

Below 1 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P4-2 (E) - Body ground

Always

Below 1 Ω

Text in Illustration

*1

Front view of wire harness connector

(to Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))


OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.

CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - SLIDING ROOF SWITCH ASSEMBLY)

(a) Disconnect the P6 switch connector.


(b) Disconnect the P4 ECU connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P4-9 (CLS) - P6-2 (CLS)

Always

Below 1 Ω

P4-9 (CLS) - Body ground

Always

10 kΩ or higher

P4-7 (OPN) - P6-3 (OPN)

Always

Below 1 Ω

P4-7 (OPN) - Body ground

Always

10 kΩ or higher

P4-8 (DWN) - P6-4 (DOWN)

Always

Below 1 Ω

P4-8 (DWN) - Body ground

Always

10 kΩ or higher

P4-10 (UP) - P6-5 (UP)

Always

Below 1 Ω

P4-10 (UP) - Body ground

Always

10 kΩ or higher

P6-1 (GND) - Body ground

Always

Below 1 Ω

P4-2 (E) - Body ground

Always

Below 1 Ω

Text in Illustration

*1

Front view of wire harness connector

(to Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly))

*2

Front view of wire harness connector

(to Sliding Roof Switch (Roof Console Box Assembly))


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

5.

INSPECT SLIDING ROOF SWITCH (ROOF CONSOLE BOX ASSEMBLY)

(a) Remove the sliding roof switch (roof console box assembly) (See page ).



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

Standard Resistance:

Tester Connection

Condition

Specified Condition

P6-4 (DOWN) - P6-1 (GND)

TILT DOWN switch is pressed

Below 1 Ω

P6-4 (DOWN) - P6-1 (GND)

TILT DOWN switch is not pressed

10 kΩ or higher

P6-5 (UP) - P6-1 (GND)

TILT UP switch is pressed

Below 1 Ω

P6-5 (UP) - P6-1 (GND)

TILT UP switch is not pressed

10 kΩ or higher

P6-2 (CLS) - P6-1 (GND)

SLIDE CLOSE switch is pressed

Below 1 Ω

P6-2 (CLS) - P6-1 (GND)

SLIDE CLOSE switch is not pressed

10 kΩ or higher

P6-3 (OPN) - P6-1 (GND)

SLIDE OPEN switch is pressed

Below 1 Ω

P6-3 (OPN) - P6-1 (GND)

SLIDE OPEN switch is not pressed

10 kΩ or higher

Text in Illustration

*1

Component without harness connected

Sliding Roof Switch (Roof Console Box Assembly)


OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)


NG

REPLACE SLIDING ROOF SWITCH (ROOF CONSOLE BOX ASSEMBLY)

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