Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B3XD
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM (for Gasoline Model): Sliding Roof does not Move by Operating Sliding Roof Control Switch; 2019 - 2022 MY Avalon [04/2018 -        ]

Sliding Roof does not Move by Operating Sliding Roof Control Switch

DESCRIPTION

The sliding roof ECU (sliding roof drive gear assembly) receives slide and tilt signals and operates its built-in motor when the sliding roof switch (roof console box sub-assembly) is operated.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • If the sliding roof ECU (sliding roof drive gear assembly) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear assembly) must be initialized.

    Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM (for Gasoline Model): INITIALIZATION

  • If a sliding roof ECU (sliding roof drive gear assembly) DTC is output, first perform troubleshooting for the sliding roof ECU (sliding roof drive gear assembly) DTC.

    Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

PROCEDURE

1.

PERFORM ACTIVE TEST USING TECHSTREAM (SLIDE ROOF)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Slide Roof / Active Test.

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

Body Electrical > Sliding Roof > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Slide Roof

Operate sliding roof motor

OFF / Opn/Dwn / Clos/Up

-

Body Electrical > Sliding Roof > Active Test

Tester Display

Slide Roof

OK:

Slide roof is operated using Techstream.

NG

GO TO STEP 5

OK

2.

READ VALUE USING TECHSTREAM

(a) Enter the following menus: Body Electrical / Sliding Roof / Data List.

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

Body Electrical > Sliding Roof > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Open Switch

OPEN switch signal

OFF or ON

OFF: OPEN switch not pressed

ON: OPEN switch pressed

-

Close Switch

CLOSE switch signal

OFF or ON

OFF: CLOSE switch not pressed

ON: CLOSE switch pressed

-

Up Switch

UP switch signal

OFF or ON

OFF: UP switch not pressed

ON: UP switch pressed

-

Down Switch

DOWN switch signal

OFF or ON

OFF: DOWN switch not pressed

ON: DOWN switch pressed

-

Body Electrical > Sliding Roof > Data List

Tester Display

Open Switch

Close Switch

Up Switch

Down Switch

OK:

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

OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL

NG

3.

INSPECT SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)

(a) Remove the sliding roof switch (roof console box sub-assembly).

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SWITCH ASSEMBLY: REMOVAL

(b) Inspect the sliding roof switch (roof console box sub-assembly).

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SWITCH ASSEMBLY: INSPECTION

NG

REPLACE SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)

OK

4.

CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) - SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY) AND BODY GROUND)

(a) Disconnect the O3 sliding roof ECU (sliding roof drive gear assembly) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

O3-8 (CLS) - O10-4 (CLS)

Always

Below 1 Ω

O3-8 (CLS) or O10-4 (CLS) - Body ground

Always

10 kΩ or higher

O3-10 (OPN) - O10-5 (OPN)

Always

Below 1 Ω

O3-10 (OPN) or O10-5 (OPN) - Body ground

Always

10 kΩ or higher

O3-9 (DWN) - O10-18 (DOWN)

Always

Below 1 Ω

O3-9 (DWN) or O10-18 (DOWN) - Body ground

Always

10 kΩ or higher

O3-5 (UP) - O10-3 (UP)

Always

Below 1 Ω

O3-5 (UP) or O10-3 (UP) - Body ground

Always

10 kΩ or higher

O10-15 (GND) - Body ground

Always

Below 1 Ω

O3-2 (E) - Body ground

Always

Below 1 Ω
OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) - IG POWER SUPPLY AND BODY GROUND)

(a) Disconnect the O3 sliding roof ECU (sliding roof drive gear assembly) connector.

*a

Front view of wire harness connector

(to Sliding Roof ECU (Sliding Roof Drive Gear Assembly))

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

O3-6 (IG) - Body ground

Engine switch on (IG)

11 to 14 V

O3-6 (IG) - Body ground

Engine 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

O3-2 (E) - Body ground

Always

Below 1 Ω
OK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; SLIDING ROOF / CONVERTIBLE: SLIDING ROOF HOUSING: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR