Toyota Avalon (XX50): Sliding Roof System(for Hv Model)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Exterior / Sliding Roof / Convertible / Sliding Roof System(for Hv Model)

Sensor (Motor) Failure (B2341,B2344)

DESCRIPTION

When the sliding roof ECU (sliding roof drive gear assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B2341 is stored.

When the sliding roof ECU (sliding roof drive gear assembly) detects a gear position malfunction and the sliding roof operation is stopped, DTC B2344 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B2341	Sensor (Motor) Failure	Sensor (motor) failure (The sliding roof ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the motor)	Sliding roof ECU (Sliding roof drive gear assembly) Sliding roof switch (Roof console box sub-assembly) Wire harness or connector
B2344	Position Failure	Position failure (The sliding roof ECU (sliding roof drive gear assembly) enters fail-safe mode due to a problem with the gear position)	Sliding roof ECU (Sliding roof drive gear assembly) Sliding roof switch (Roof console box sub-assembly) Wire harness or connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.	CHECK SLIDING ROOF OPERATION

(a) Check the sliding roof auto operation.

Click here

OK:

Auto operation operates normally.

GO TO STEP 3

2.	CHECK DTC OUTPUT

(a) Clear the DTCs.

Body Electrical > Sliding Roof > Clear DTCs

(b) Check for DTCs.

Body Electrical > Sliding Roof > Trouble Codes

OK:

DTCs B2341 and B2344 are not output.

USE SIMULATION METHOD TO CHECK

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

3.	INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Check that the sliding roof ECU (sliding roof drive gear assembly) can be initialized.

Click here

OK:

Sliding roof ECU (sliding roof drive gear assembly) can be initialized.

GO TO STEP 5

4.	CHECK DTC OUTPUT

(a) Clear the DTCs.

Body Electrical > Sliding Roof > Clear DTCs

(b) Check for DTCs.

Body Electrical > Sliding Roof > Trouble Codes

OK:

DTCs B2341 and B2344 are not output.

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

5.	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 O10 sliding roof switch (roof console box sub-assembly) connector.

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

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

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

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

Click here

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

Click here

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

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

Switch Failure (B2342)

DESCRIPTION

This DTC is stored when the sliding roof ECU (sliding roof drive gear assembly) detects that the sliding roof switch (roof console box sub-assembly) is stuck for 30 seconds or more.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B2342	Switch Failure	Sliding roof ECU (sliding roof drive gear assembly) detects sliding roof switch (roof console box sub-assembly) is stuck for 30 seconds or more	Sliding roof ECU (Sliding roof drive gear assembly) Sliding roof switch (Roof console box sub-assembly) Wire harness or connector

WIRING DIAGRAM

Refer to DTC B2341.

Click here

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.	READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

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

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

(e) 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 Failure(Past)	Open switch failure signal (Past)	OFF or ON	OFF: No sliding roof open switch failure signal (Past) ON: Sliding roof open switch failure signal (Past)	-
Close Switch Failure(Past)	Close switch failure signal (Past)	OFF or ON	OFF: No sliding roof close switch failure signal (Past) ON: Sliding roof close switch failure signal (Past)	-
Up Switch Failure(Past)	Up switch failure signal (Past)	OFF or ON	OFF: No sliding roof tilt up switch failure signal (Past) ON: Sliding roof tilt up switch failure signal (Past)	-
Down Switch Failure(Past)	Down switch failure signal (Past)	OFF or ON	OFF: No sliding roof tilt down switch failure signal (Past) ON: Sliding roof tilt down switch failure signal (Past)	-
Open Switch Failure(Current)	Open switch failure signal (Current)	OFF or ON	OFF: No sliding roof open switch failure signal (Current) ON: Sliding roof open switch failure signal (Current)	-
Close Switch Failure(Current)	Close switch failure signal (Current)	OFF or ON	OFF: No sliding roof close switch failure signal (Current) ON: Sliding roof close switch failure signal (Current)	-
Up Switch Failure(Current)	Up switch failure signal (Current)	OFF or ON	OFF: No sliding roof tilt up switch failure signal (Current) ON: Sliding roof tilt up switch failure signal (Current)	-
Down Switch Failure(Current)	Down switch failure signal (Current)	OFF or ON	OFF: No sliding roof tilt down switch failure signal (Current) ON: Sliding roof tilt down switch failure signal (Current)	-

Body Electrical > Sliding Roof > Data List

Tester Display
Open Switch Failure(Past)
Close Switch Failure(Past)
Up Switch Failure(Past)
Down Switch Failure(Past)
Open Switch Failure(Current)
Close Switch Failure(Current)
Up Switch Failure(Current)
Down Switch Failure(Current)

OK:

OFF is displayed for each Data List item.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

2.	CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) - BODY GROUND)

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

(b) Disconnect the O10 sliding roof switch (roof console box sub-assembly) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
O3-10 (OPN) - Body ground	Always	10 kΩ or higher
O3-8 (CLS) - Body ground	Always	10 kΩ or higher
O3-5 (UP) - Body ground	Always	10 kΩ or higher
O3-9 (DWN) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

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

Click here

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

Click here

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

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

Position Initialization Incomplete (B2343)

DESCRIPTION

This DTC is stored when the sliding roof ECU (sliding roof drive gear assembly) has not been initialized.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B2343	Position Initialization Incomplete	Sliding roof ECU (sliding roof drive gear assembly) has not been initialized	Sliding roof ECU (Sliding roof drive gear assembly)

WIRING DIAGRAM

Refer to DTC B2341.

Click here

CAUTION / NOTICE / HINT

NOTICE:

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

HINT:

When DTC B2342 and B2343 are output simultaneously, perform troubleshooting for DTC B2342 first.

PROCEDURE

1.	INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Check that the sliding roof ECU (sliding roof drive gear assembly) can be initialized.

Click here

OK:

Sliding roof ECU (sliding roof drive gear assembly) can be initialized.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

2.	CHECK SLIDING ROOF OPERATION

(a) Check the sliding roof auto operation.

Click here

OK:

Auto operation operates normally.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

3.	CHECK DTC OUTPUT

(a) Clear the DTCs.

Body Electrical > Sliding Roof > Clear DTCs

(b) Check for DTCs.

Body Electrical > Sliding Roof > Trouble Codes

OK:

DTC B2343 is not output.

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

Customize Parameters

CUSTOMIZE PARAMETERS

CUSTOMIZE SLIDING ROOF SYSTEM

HINT:

The following items can be customized.

NOTICE:

When the customer requests a change in a function, first make sure that the function can be customized.
Be sure to make a note of the current settings before customizing.
When troubleshooting a function, first make sure that the function is set to the default setting.

(a) Customizing with the Techstream

(1) Connect the Techstream to the DLC3.

(2) Turn the power switch on (IG).

(3) Turn the Techstream on.

(4) Enter the following menus: Customize Setting / Power Window.

(5) Select the setting by referring to the table below.

Power Window

Tester Display	Description	Default	Setting	ECU
Door Key P/W Up	Function to close the power windows and sliding roof using the mechanical key	OFF	0:OFF,1:ON	Main body ECU (Multiplex network body ECU)
Door Key P/W Down	Function to open the power windows and sliding roof using the mechanical key	OFF	0:OFF,1:ON	Main body ECU (Multiplex network body ECU)
P/W Down W/ Transmit	Function to open the power windows and sliding roof using the electrical key transmitter sub-assembly	OFF	0:OFF,1:ON	Main body ECU (Multiplex network body ECU)

(6) Enter the following menus: Customize Setting / Slide Roof.

(7) Select the setting by referring to the table below.

Slide Roof

Tester Display	Description	Default	Setting	ECU
Door Key Related Operation	Function to select tilt up or slide open of sliding roof key-linked function	Slide	0:Slide,1:Tilt	Sliding roof ECU (Sliding roof drive gear assembly)
Wireless Key Related Operation	Function to select tilt up or slide open of sliding roof wireless transmitter-linked function	Slide	0:Slide,1:Tilt	Sliding roof ECU (Sliding roof drive gear assembly)
Front SW Auto Operation	Function to enable/disable auto operation	ON	0:OFF,1:ON	Sliding roof ECU (Sliding roof drive gear assembly)

(8) Enter the following menus: Customize Setting / Security.

(9) Select the setting by referring to the table below.

Security

Tester Display	Description	Default	Setting	ECU
Slide Roof Open Warning	Function to enable or disable the sliding roof open warning	ON	0:OFF,1:ON	Main body ECU (Multiplex network body ECU)

Data List / Active Test

DATA LIST / ACTIVE TEST

DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:

In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Connect the Techstream to the DLC3.

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

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

(e) 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	-
Front SW Auto Operation	Sliding roof auto operation function	OFF or ON	Customize setting displayed	-
Hall IC1 Pulse	Hall IC1 pulse output	Lo or Hi	Lo and Hi repeat during motor operation	Lo: Hall IC1 output is low Hi: Hall IC1 output is high
Hall IC1 Status	Status of Hall IC1	Normal or Error	Normal: Hall IC1 normal Error: Hall IC1 not normal	-
Hall IC2 Pulse	Hall IC2 pulse output	Lo or Hi	Lo and Hi repeat during motor operation	Lo: Hall IC2 output is low Hi: Hall IC2 output is high
Hall IC2 Status	Status of Hall IC2	Normal or Error	Normal: Hall IC2 normal Error: Hall IC2 not normal	-
Ignition (Direct Signal)	Power switch signal	OFF or ON	OFF: Power switch off ON: Power switch on (IG)	-
Ignition (MPX)	Power switch signal (LIN signal)	OFF or ON	OFF: Power switch off ON: Power switch on (IG)	-
Door Courtesy	Driver door courtesy light switch signal	OFF or ON	OFF: Driver door closed ON: Driver door open	-
Door Key Close Operation	Key-linked sliding roof close signal	OFF or ON	OFF: Driver door key cylinder not turned ON: Driver door key cylinder turned and held at the lock position	-
Door Key Open Operation	Key-linked sliding roof open signal	OFF or ON	OFF: Driver door key cylinder not turned ON: Driver door key cylinder turned and held at the unlock position	-
Wireless Open Operation	Wireless transmitter-linked sliding roof open signal	OFF or ON	OFF: Electrical key transmitter sub-assembly UNLOCK switch not pressed ON: Electrical key transmitter sub-assembly UNLOCK switch pressed and held	-
Key Off Permission	Key-off sliding roof operation permit signal	OFF or ON	OFF: Any status except "ON" status ON: Front doors are not opened within 45 seconds after power switch turned off	-
Door Key Related Operation	Key-linked sliding roof open function operating direction	Slide or Tilt	Customize setting displayed	-
Wireless Key Rel Operation	Wireless transmitter-linked sliding roof open function operating direction	Slide or Tilt	Customize setting displayed	-
Open Switch Failure(Past)	Open switch failure signal (Past)	OFF or ON	OFF: No sliding roof open switch failure signal (Past) ON: Sliding roof open switch failure signal (Past)	-
Close Switch Failure(Past)	Close switch failure signal (Past)	OFF or ON	OFF: No sliding roof close switch failure signal (Past) ON: Sliding roof close switch failure signal (Past)	-
Up Switch Failure(Past)	Up switch failure signal (Past)	OFF or ON	OFF: No sliding roof tilt up switch failure signal (Past) ON: Sliding roof tilt up switch failure signal (Past)	-
Down Switch Failure(Past)	Down switch failure signal (Past)	OFF or ON	OFF: No sliding roof tilt down switch failure signal (Past) ON: Sliding roof tilt down switch failure signal (Past)	-
Open Switch Failure(Current)	Open switch failure signal (Current)	OFF or ON	OFF: No sliding roof open switch failure signal (Current) ON: Sliding roof open switch failure signal (Current)	-
Close Switch Failure(Current)	Close switch failure signal (Current)	OFF or ON	OFF: No sliding roof close switch failure signal (Current) ON: Sliding roof close switch failure signal (Current)	-
Up Switch Failure(Current)	Up switch failure signal (Current)	OFF or ON	OFF: No sliding roof tilt up switch failure signal (Current) ON: Sliding roof tilt up switch failure signal (Current)	-
Down Switch Failure(Current)	Down switch failure signal (Current)	OFF or ON	OFF: No sliding roof tilt down switch failure signal (Current) ON: Sliding roof tilt down switch failure signal (Current)	-
Suggestion Service Function	Availability of suggestion function	OFF or ON	OFF: w/o Suggestion function ON: w/ Suggestion function	-
Number of Trouble Codes	Number of DTCs	Min.: 0, Max.: 255	Number of stored DTCs	-

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
IG SW	Power switch status	OFF or ON	OFF: Power switch off ON: Power switch on (IG)	"OFF" is displayed even though the power switch is on (ACC).
FR Door Courtesy SW	Front door courtesy light switch assembly (for RH) signal	OFF or ON	OFF: Front door RH closed ON: Front door RH open	-
FL Door Courtesy SW	Front door courtesy light switch assembly (for LH) signal	OFF or ON	OFF: Front door LH closed ON: Front door LH open	-
Door Key P/W Up	Key-linked sliding roof close function	OFF or ON	Customize setting displayed	-
Door Key P/W Down	Key-linked sliding roof open function	OFF or ON	Customize setting displayed	-
P/W Down W/ Transmit	Wireless transmitter linked sliding roof open function	OFF or ON	Customize setting displayed	-
Slide Roof Open Warning	Sliding roof open warning function	OFF or ON	Customize setting displayed	-
Communication Slide Roof	Connection status between sliding roof ECU (sliding roof drive gear assembly) and main body ECU (multiplex network body ECU)	STOP or OK	STOP: Communication stopped OK: Normal communication	-

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

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

(d) Enter the following menus: Body Electrical / Sliding 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	-

Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

(a) Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

CHECK DLC3

(a) Check the DLC3.

Click here

INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the power switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Sliding Roof System (for HV Model)

DTC No.	Detection Item	Link
B2341	Sensor (Motor) Failure
B2342	Switch Failure
B2343	Position Initialization Incomplete
B2344	Position Failure

Dtc Check / Clear

DTC CHECK / CLEAR

CHECK DTC

(a) Connect the Techstream to the DLC3.

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

(d) Enter the following menus: Body Electrical / Sliding Roof / Trouble Codes.

Body Electrical > Sliding Roof > Trouble Codes

(e) Check the details of the DTC(s).

Click here

CLEAR DTC

(a) Connect the Techstream to the DLC3.

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

(d) Enter the following menus: Body Electrical / Sliding Roof / Trouble Codes.

Body Electrical > Sliding Roof > Clear DTCs

(e) Clear the DTCs.

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use the following procedure to troubleshoot the sliding roof system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

HINT:

In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

The following 5 items are important points for problem analysis:

What	Vehicle model, system name
When	Date, time, occurrence frequency
Where	Road conditions
Under what conditions?	Driving conditions, weather conditions
How did it happen?	Problem symptoms

PRE-CHECK

(a) Measure the auxiliary battery voltage with power switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

4.	INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for CAN communication system DTCs.

Click here

Result	Proceed to
CAN DTCs are not output	A
CAN DTCs are output	B

GO TO CAN COMMUNICATION SYSTEM

5.	INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for LIN communication system DTCs.

Click here

Result	Proceed to
LIN DTCs are not output	A
LIN DTCs are output	B

GO TO LIN COMMUNICATION SYSTEM

6.	CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output.

Click here

Body Electrical > Sliding Roof > Trouble Codes

(b) Clear the DTCs.

Body Electrical > Sliding Roof > Clear DTCs

Body Electrical > Sliding Roof > Trouble Codes

Result	Proceed to
DTCs are not output	A
DTCs are output	B

GO TO DIAGNOSTIC TROUBLE CODE CHART

7.	PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

GO TO STEP 9

8.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check

Click here

(b) Terminals of ECU

Click here

(d) Inspection

9.	ADJUST, REPAIR OR REPLACE

(a) Check if the sliding roof drive gear assembly has been replaced, or the sliding roof glass sub-assembly or sliding roof drive cable sub-assembly has been adjusted, or removed and installed.

Result	Proceed to
The sliding roof drive gear assembly has been replaced, or the sliding roof glass sub-assembly or sliding roof drive cable sub-assembly has been adjusted, or removed and installed.	A
The sliding roof drive gear assembly has not been replaced, and the sliding roof glass sub-assembly and sliding roof drive cable sub-assembly have not been adjusted, or removed and installed.	B

GO TO STEP 11

10.	INITIALIZE SLIDING ROOF SYSTEM

(a) Initialize the sliding roof ECU (sliding roof drive gear assembly).

Click here

11.	CONFIRMATION TEST

END

Initialization

INITIALIZATION

INITIALIZE SLIDING ROOF SYSTEM

NOTICE:

When the sliding roof glass sub-assembly or sliding roof drive cable sub-assembly is adjusted or removed/installed, or the sliding roof drive gear sub-assembly is replaced, the sliding roof ECU (sliding roof drive gear assembly) must be initialized to store the position of the sliding roof. If initialization is not performed, the auto operation function, jam protection function, key-off operation function, key-linked function, wireless transmitter-linked function and sliding roof open warning function may not operate, or the sliding roof may move in reverse or become misaligned.
During initialization, do not subject the vehicle to physical shock, such as opening/closing a door or driving the vehicle at 5 km/h (3 mph) or more, and do not perform any electrical operations.
Make sure not to turn the power switch on (ACC) or off during initialization.
If the sliding roof ECU (sliding roof drive gear assembly) has been replaced, DTC B2343 will be stored. Clear the DTC after performing initialization.
Click here

HINT:

The sliding roof switch is built into the roof console box sub-assembly.
It is not necessary to initialize the sliding roof ECU (sliding roof drive gear assembly) if the cable has been disconnected from the negative (-) auxiliary battery terminal, or if the auxiliary battery has been replaced.

(a) Perform initialization according to the table below.

Condition of Sliding Roof	Proceed to
Auto operation function does not operate.	Procedure A
Auto operation function operates, but the sliding roof does not stop at the correct position (misalignment occurs), or the sliding roof moves in the opposite direction during tilt down operation.	Procedure B
Auto operation function operates, but the sliding roof moves in the opposite direction during slide close operation.	Procedure C

(1) Procedure A

Turn the power switch on (IG).
Fully close the sliding roof and release the sliding roof switch (roof console box sub-assembly).*1
Press and hold the CLOSE or UP switch.
The sliding roof performs the following operations: tilt up → pause for 1 second → tilt down → slide open → slide closed.
After the sliding roof stops in the fully closed position, release the switch.*2
NOTICE:

Press and hold the CLOSE or UP switch until *2 is completed. If the switch is released before *2 is completed, repeat the operation from *1.

HINT:

The initialization process ends when this operation is complete.
Make sure that the sliding roof auto operation function operates normally.

(2) Procedure B

Turn the power switch on (IG).
Press the UP switch to move the sliding roof to the fully tilted up position and then release the UP switch.
HINT:
- If the sliding roof cannot be fully tilted up due to misalignment of the sliding roof glass sub-assembly, press and hold the CLOSE switch until the sliding roof stops closing, and then press and hold the UP switch until the sliding roof stops tilting up.
- If the sliding roof moves in the opposite direction while it is being closed, repeatedly tap the CLOSE switch at short intervals to fully close the sliding roof. When the sliding roof is fully closed, press the UP switch to move the sliding roof to the fully tilted up position.
Press and hold the UP switch again until the sliding roof completes the following operations: pause for approximately 10 seconds or more → tilt inching motion → pause for 1 second → tilt down → slide open → slide closed.*1
After the sliding roof stops in the fully closed position, release the switch.*2
NOTICE:
- While performing *1, if the UP switch is released before "pause for approximately 10 seconds or more" completes, start this step over.
- While performing *1, if the UP switch is released after "pause for approximately 10 seconds or more" completes, but before the above movements complete, perform procedure A to initialize the position of the sliding roof.
- Press and hold the UP switch until *2 is completed.
HINT:

The initialization process ends when this operation is complete.
Make sure that the sliding roof auto operation function operates normally.

(3) Procedure C

Turn the power switch on (IG).
Press and hold the CLOSE switch until the sliding roof completes the following operations: slide closed → move in the opposite direction → pause for approximately 10 seconds or more → slide closed → tilt up → pause for 1 second → tilts down → slide open → slide closed.*1
After the sliding roof stops in the fully closed position, release the switch.*2
NOTICE:
- While performing *1, if the CLOSE switch is released before "pause for approximately 10 seconds or more" completes, start this step over.
- While performing *1, if the CLOSE switch is released after "pause for approximately 10 seconds or more" completes, but before the above movements complete, perform procedure A to initialize the position of the sliding roof.
- Press and hold the CLOSE switch until *2 is completed.
HINT:

The initialization process ends when this operation is complete.
Make sure that the sliding roof auto operation function operates normally.

Key-off Operation Function Operates even if Operating Conditions are not Satisfied

DESCRIPTION

The sliding roof ECU (sliding roof drive gear assembly) operates its built-in motor according to the sliding roof switch (roof console box sub-assembly) operation. Using the sliding roof switch (roof console box sub-assembly), if the sliding roof can be operated normally when 45 seconds or more have elapsed since the power switch was turned off, the key-off operation function may be abnormal.

CAUTION / NOTICE / HINT

NOTICE:

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
The sliding roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to How to Proceed with Troubleshooting.
Click here
Before replacing the main body ECU (multiplex network body ECU) refer to Registration.
Click here

PROCEDURE

1.	CHECK POWER WINDOW CONTROL SYSTEM

(a) Check if the key-off operation function of the power window control system operates normally.

Click here

OK:

The key-off operation function of the power window control system operates normally.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Operation Check

OPERATION CHECK

CHECK AUTO OPERATION FUNCTION

NOTICE:

Make sure that initialization has been completed before performing this inspection.
Click here
The sliding roof auto operation can be customized. Make sure that the auto operation customize setting is set to ON.
Click here

HINT:

When a switch is pressed for 0.3 seconds or less, the sliding roof will move but auto operation will not operate.

(a) Turn the power switch on (IG).

(b) When the sliding roof is fully closed, press the OPEN switch for 0.3 seconds or more. Check that the sliding roof automatically slides until it reaches the comfort stop position.

(c) When the sliding roof is in the comfort stop position, press the OPEN switch again for 0.3 seconds or more. Check that the sliding roof automatically slides until it is fully opened.

(d) When the sliding roof is fully open, press the CLOSE switch for 0.3 seconds or more. Check that the sliding roof automatically slides until it is fully closed.

(e) When the sliding roof is fully closed, press the UP switch for 0.3 seconds or more. Check that the sliding roof automatically tilts up until it is fully tilted upward.

(f) When the sliding roof is fully tilted up, press the DOWN switch for 0.3 seconds or more. Check that the sliding roof automatically tilts down until it is fully tilted downward.

(g) When the auto operation function is operating, check that pressing any of the switches on the sliding roof switch (roof console box sub-assembly) stops the sliding roof operation.

CHECK KEY-OFF OPERATION FUNCTION

NOTICE:

Make sure that initialization has been completed before performing this inspection.

Click here

(a) Turn the power switch from on (IG) to off and check that the sliding roof can be operated. Then open the driver or front passenger door once and check that the sliding roof cannot be operated.

(b) Turn the power switch from on (IG) to off and wait for approximately 45 seconds. Check that the sliding roof cannot be operated.

(c) Operate the auto operation function with the driver or front passenger door open. While the sliding roof is moving, turn the power switch off. Check that the sliding roof stops immediately.

CHECK JAM PROTECTION FUNCTION

CAUTION:

Do not use a part of your body, for example, your hand, to check the jam protection function.
Do not allow anything to become caught in the sliding roof by accident while performing this inspection.
Perform the inspection from the inside of the vehicle.

NOTICE:

To avoid damaging the roof, do not use a hard object, such as a hammer, when performing this inspection.
Make sure that initialization has been completed before performing this inspection.
Click here
The jam protection function does not operate when the sliding roof is close to the fully closed position.

(a) When the slide close function is operating and an object is caught between the vehicle body and sliding roof glass sub-assembly, check that the sliding roof opens a distance of 218 mm (8.58 in.) from the point of contact with the object, or opens fully if an opening distance of 218 mm (8.58 in.) is not available.

(b) When the tilt down function is operating and an object is caught between the vehicle body and the sliding roof glass sub-assembly, check that the sliding roof tilts up fully.

CHECK KEY-LINKED FUNCTION

CAUTION:

Make sure that no one is near the vehicle while performing this inspection. Also be careful not to let any part of your body, such as your hand, get caught in the sliding roof by accident while performing this inspection.

NOTICE:

Make sure that initialization has been completed before performing this inspection.
Click here
The sliding roof key-linked function can be customized. Make sure that the key-linked function customize settings are set to ON.
Click here

HINT:

This function is linked with the power window key-linked function.
The sliding roof key-linked function can be customized to perform either the sliding operation or tilting operation.

(a) Check the key-linked open function:

(1) Close and lock all of the doors.

(2) Insert the mechanical key into the driver door key cylinder and turn the mechanical key to the unlock position for approximately 2.5 seconds or more. Check that slide open/tilt up operation occurs. Then release the mechanical key and check that the sliding roof stops moving.

(b) Check the key-linked close function:

(1) Open the sliding roof by using the sliding roof switch (roof console box sub-assembly).

(2) Close and unlock all of the doors.

(3) Insert the mechanical key into the driver door key cylinder, and turn the mechanical key to the lock position for approximately 2.5 seconds or more. Check that the slide close/tilt down operation occurs. Then release the mechanical key and check that the sliding roof stops moving.

CHECK WIRELESS TRANSMITTER-LINKED FUNCTION

CAUTION:

NOTICE:

Make sure that initialization has been completed before performing this inspection.
Click here
The sliding roof wireless transmitter-linked function can be customized. Make sure that the wireless transmitter-linked function customize settings are set to ON.
Click here

HINT:

This function is linked with the power window wireless transmitter-linked function.
The wireless transmitter-linked function can be customized to perform either the sliding operation or tilting operation.

(a) Check the wireless transmitter-linked open function:

(1) Close and lock all of the doors.

(2) Press and hold the transmitter UNLOCK switch for approximately 4 seconds or more and check that the slide open/tilt up operation occurs. Then release the UNLOCK switch and check that the sliding roof stops moving.

CHECK SLIDING ROOF OPEN WARNING FUNCTION

NOTICE:

Make sure that initialization has been completed before performing this inspection.
Click here
The sliding roof open warning can be customized. Make sure that the sliding roof open warning customize setting is set to ON.
Click here

(a) Open the sliding roof by using the sliding roof switch (roof console box sub-assembly).

(b) When the power switch is turned from on (IG) to off and the driver door is opened with the electrical key transmitter sub-assembly in the vehicle, check that the warning buzzer in the combination meter assembly sounds once. Then, check that the message is displayed on the multi-information display in the combination meter assembly.

Parts Location

PARTS LOCATION

ILLUSTRATION

*1	FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for LH)	*2	FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for RH)
*3	SLIDING ROOF SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)	*4	SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)
*5	COMBINATION METER ASSEMBLY	*6	DLC3
*7	MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)	*8	INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - S/ROOF FUSE - ECU-IG1 NO. 3 FUSE

Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

NOTICE:

When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected.

System Name	See Procedure
Lane Departure Alert System (w/ Steering Control)
Intelligent Clearance Sonar System
Parking Assist Monitor System
Panoramic View Monitor System
Pre-collision System
Lighting System (for HV Model with Cornering Light)

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Sliding Roof System

Symptom	Suspected Area	Link
Remote control system does not operate	Refer to the "Remote Control System does not Operate".
Key-off operation function operates even if operating conditions are not satisfied	Refer to the "Key-off Operation Function Operates even if Operating Conditions are not Satisfied".
Sliding roof does not move by operating sliding roof control switch	Refer to the "Sliding Roof does not Move by Operating Sliding Roof Control Switch".

Remote Control System does not Operate

DESCRIPTION

The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or electrical key transmitter sub-assembly. Then, the main body ECU (multiplex network body ECU) activates the power window motor and sends the remote control signals to the sliding roof ECU (sliding roof drive gear assembly) via LIN communication. The sliding roof ECU (sliding roof drive gear assembly) receives those signals and activates the sliding roof motor.

CAUTION / NOTICE / HINT

NOTICE:

The sliding roof key-linked function and sliding roof wireless transmitter-linked function can be customized. Make sure that the customize settings of both functions are set to ON.
Click here
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
The sliding roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to How to Proceed with Troubleshooting.
Click here
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
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Click here

PROCEDURE

1.	CHECK REMOTE CONTROL FUNCTION

(a) Check the key-linked and wireless transmitter-linked functions.

Click here

Result	Proceed to
Both the power windows and sliding roof operate by the key-linked and wireless transmitter-linked functions.	A
The sliding roof does not operate by the key-linked or wireless transmitter-linked function, but all of the power windows operate.	B
Both the power windows and sliding roof do not operate by the key-linked or wireless transmitter-linked function.	C

USE SIMULATION METHOD TO CHECK

GO TO POWER WINDOW CONTROL SYSTEM

2.	CHECK SLIDING ROOF OPERATION

(a) Check the sliding roof operation.

Click here

OK:

Sliding roof operates normally.

GO TO OTHER PROBLEM (Sliding Roof does not Move by Operating Sliding Roof Control Switch)

3.	REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Replace the sliding roof ECU (sliding roof drive gear assembly).

Click here

4.	INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Initialize the sliding roof ECU (sliding roof drive gear assembly).

Click here

5.	CHECK REMOTE CONTROL FUNCTION

(a) Check the key-linked and wireless transmitter-linked functions.

Click here

OK:

The key-linked and wireless transmitter-linked functions operate normally.

END (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) WAS DEFECTIVE)

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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
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

PROCEDURE

1.	PERFORM ACTIVE TEST USING TECHSTREAM (SLIDE ROOF)

(a) Connect the Techstream to the DLC3.

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

(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.

GO TO STEP 5

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.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

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

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

Click here

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

Click here

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

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

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

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	Power switch on (IG)	11 to 14 V
O3-6 (IG) - Body ground	Power switch off	Below 1 V

Standard Resistance:

Tester Connection	Condition	Specified Condition
O3-2 (E) - Body ground	Always	Below 1 Ω

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

System Description

SYSTEM DESCRIPTION

SLIDING ROOF SYSTEM DESCRIPTION

(a) The sliding roof system controls the sliding roof operation using the sliding roof ECU (sliding roof drive gear assembly). Operating the sliding roof switch (roof console box sub-assembly) results in electrical power being transmitted to the sliding roof ECU (sliding roof drive gear assembly).

FUNCTION OF MAIN COMPONENT

The sliding roof system consists of the following components:

Component	Outline
Sliding roof ECU (Sliding roof drive gear assembly)	Controls the rotational direction of the motor, which tilts or slides the sliding roof.
Sliding roof switch (Roof console box sub-assembly)	Outputs operation signals to the sliding roof ECU (sliding roof drive gear assembly).

SYSTEM FUNCTION

The sliding roof system has the following functions:

Function	Outline
Manual slide open and close function	This function causes the sliding roof to open (or close) when the OPEN switch (or CLOSE switch) is pressed for a maximum of 0.3 seconds. The sliding roof stops as soon as the switch is released.
Auto slide open and close function	This function causes the sliding roof to reach the comfort stop position or fully open (or fully close) when the OPEN switch (or CLOSE switch) is pressed for a minimum of 0.3 seconds.
Manual tilt up and down function	This function causes the sliding roof to tilt up (or tilt down) when the UP switch (or DOWN switch) is pressed for a maximum of 0.3 seconds. The sliding roof stops as soon as switch is released.
Auto tilt up and down function	This function causes the sliding roof to fully tilt up (or tilt down) when the UP switch (or DOWN switch) is pressed for a minimum of 0.3 seconds.
Jam protection function	The jam protection function automatically stops the sliding roof and moves it open halfway (or fully tilt up) if foreign matter gets jammed in the sliding roof during close or tilt down operation.
Key-off operation function	The key-off operation function makes it possible to operate the sliding roof for approximately 45 seconds after the power switch is turned from on (IG) to off, if both the driver door and front passenger door are not opened.
Key-linked function*	When the electrical key transmitter sub-assembly is not in the vehicle, the driver door is unlocked, and the driver door key cylinder is turned and held in the unlock position for 2.5 seconds or more, the sliding roof ECU (sliding roof drive gear assembly) activates the sliding roof motor to open the sliding roof while the key cylinder is turned. When the electrical key transmitter sub-assembly is not in the vehicle, the driver door is locked, and the driver door key cylinder is turned and held in the lock position for 2.5 seconds or more, the sliding roof ECU (sliding roof drive gear assembly) activates the sliding roof motor to close the sliding roof while the key cylinder is turned. HINT: This function is linked with the power window key-linked function.
Wireless transmitter-linked function*	When the main body ECU (multiplex network body ECU) receives an unlock signal from the electrical key transmitter sub-assembly continuously for longer than 4 seconds, the sliding roof ECU (sliding roof drive gear assembly) activates the sliding roof motor to open the sliding roof while the switch of the electrical key transmitter sub-assembly is being pressed. HINT: This function is linked with the power window wireless transmitter-linked function.
Sliding roof open warning function	When the power switch is turned from on (IG) and the driver door is opened with the sliding roof open, the buzzer in the combination meter assembly sounds once and a warning message is displayed on the multi-information display.

*: This function is set through the customize setting, as it is off by default.

System Diagram

SYSTEM DIAGRAM

Communication Table

Sender	Receiver	Signal	Line
Main Body ECU (Multiplex Network Body ECU)	Sliding Roof ECU (Sliding Roof Drive Gear Assembly)	Sliding roof operation permission signal IG signal Front door courtesy light switch assembly signal Key-linked operation signal Wireless transmitter-linked operation signal Vehicle speed signal	LIN
Sliding Roof ECU (Sliding Roof Drive Gear Assembly)	Main Body ECU (Multiplex Network Body ECU)	Sliding roof position signal	LIN
Combination Meter Assembly	Main Body ECU (Multiplex Network Body ECU)	Vehicle speed signal	CAN
Main Body ECU (Multiplex Network Body ECU)	Combination Meter Assembly	Sliding roof open warning request signal	CAN

Terminals Of Ecu

TERMINALS OF ECU

CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

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

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
O3-1 (B) - O3-2 (E)	B - W-B	Auxiliary battery power supply	Power switch off	11 to 14 V
O3-6 (IG) - O3-2 (E)	LA-GR - W-B	IG power supply	Power switch off	Below 1 V
O3-6 (IG) - O3-2 (E)	LA-GR - W-B	IG power supply	Power switch on (IG)	11 to 14 V
O3-2 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
O3-10 (OPN) - O3-2 (E)	W - W-B	Sliding roof motor open	Power switch on (IG), OPEN switch on	Below 1 V
O3-10 (OPN) - O3-2 (E)	W - W-B	Sliding roof motor open	Power switch on (IG), OPEN switch off	11 to 14 V
O3-8 (CLS) - O3-2 (E)	SB - W-B	Sliding roof motor close	Power switch on (IG), CLOSE switch on	Below 1 V
O3-8 (CLS) - O3-2 (E)	SB - W-B	Sliding roof motor close	Power switch on (IG), CLOSE switch off	11 to 14 V
O3-5 (UP) - O3-2 (E)	R - W-B	Sliding roof motor up	Power switch on (IG), UP switch on	Below 1 V
O3-5 (UP) - O3-2 (E)	R - W-B	Sliding roof motor up	Power switch on (IG), UP switch off	11 to 14 V
O3-9 (DWN) - O3-2 (E)	LG - W-B	Sliding roof motor down	Power switch on (IG), DOWN switch on	Below 1 V
O3-9 (DWN) - O3-2 (E)	LG - W-B	Sliding roof motor down	Power switch on (IG), DOWN switch off	11 to 14 V

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click here

Sliding Roof System(for Gasoline Model)

Vehicle Approaching Speaker Ecu

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Seat: Seat Memory Switch
ComponentsCOMPONENTS ILLUSTRATION *1 FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH *2 SEAT MEMORY SWITCH InspectionINSPECTION PROCEDURE 1. INSPECT SEAT MEMORY SWITCH (DRIVER DOOR) (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Speci ...