SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: B2347,B2349; Sensor (Motor) Failure (Fr Shade); 2020 - 2024 MY RAV4 RAV4 HV [10/2019

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001MUOA
Model Year Start: 2020	Model: RAV4	Prod Date Range: [10/2019 - ]
Title: SLIDING ROOF / CONVERTIBLE: PANORAMIC MOON ROOF SYSTEM: B2347,B2349; Sensor (Motor) Failure (Fr Shade); 2020 - 2024 MY RAV4 RAV4 HV [10/2019 - ]

DTC

B2347

Sensor (Motor) Failure (Fr Shade)

DTC

B2349

Position Failure (Fr Shade)

DESCRIPTION

When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) detects a motor malfunction and the sliding roof operation is stopped, DTC B2347 is stored.

When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) detects a gear position malfunction and the sliding roof operation is stopped, DTC B2349 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B2347	Sensor (Motor) Failure (Fr Shade)	Sensor (motor) failure (When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) enters fail-safe mode due to a problem with the motor)	Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) Map light sub-assembly Harness or connector
B2349	Position Failure (Fr Shade)	Position failure (When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) enters fail-safe mode due to a problem with the gear position)	Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) Map light sub-assembly Harness or connector

WIRING DIAGRAM

for TMC Made:

for TMMC Made:

CAUTION / NOTICE / HINT

NOTICE:

When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) is removed and reinstalled or replaced, the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) must be initialized.
Click here
The panoramic moon roof system uses the CAN and LIN communication system. First, confirm that there are no malfunctions in the CAN and LIN communication system. Refer to How to Proceed with Troubleshooting.
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PROCEDURE

1.	CHECK ROOF SUNSHADE OPERATION

(a) Check the roof sunshade auto operation function.

Click here

OK:

Auto operation function operates normally.

GO TO STEP 3

2.	CHECK DTC OUTPUT

(a) Clear the DTCs.

Click here

Body Electrical > Sliding Roof > Clear DTCs

(b) Check for DTCs.

Click here

Body Electrical > Sliding Roof > Trouble Codes

OK:

DTCs B2347 and B2349 are not output.

USE SIMULATION METHOD TO CHECK

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

3.	INITIALIZE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

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

Click here

OK:

Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) can be initialized.

GO TO STEP 5

4.	CHECK DTC OUTPUT

(a) Clear the DTCs.

Click here

Body Electrical > Sliding Roof > Clear DTCs

(b) Check for DTCs.

Click here

Body Electrical > Sliding Roof > Trouble Codes

OK:

DTCs B2347 and B2349 are not output.

END (MALFUNCTION DUE TO INITIALIZATION FAILURE)

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

5.	PERFORM ACTIVE TEST USING TECHSTREAM (Front Sliding Sunshade)

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

Click here

Body Electrical > Sliding Roof > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Front Sliding Sunshade	Operate sunshade motor	OFF / Opn/Dwn / Clos/Up	-

Body Electrical > Sliding Roof > Active Test

Tester Display
Front Sliding Sunshade

OK:

Roof sunshade is operated using the Techstream.

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

6.	READ VALUE USING TECHSTREAM (Shade Close Switch, Shade Open Switch)

(a) Using the Techstream, read the Data List.

Click here

Body Electrical > Sliding Roof > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shade Close Switch

Sunshade close switch signal

ON or OFF

OFF: Roof sunshade switch (close) not pressed

ON: Roof sunshade switch (open) pressed

Shade Open Switch

Roof sunshade open switch signal

ON or OFF

OFF: Roof sunshade switch (open) not pressed

ON: Roof sunshade (open) switch pressed

Body Electrical > Sliding Roof > Data List

Tester Display
Shade Close Switch
Shade Open Switch

OK:

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

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

7.	INSPECT MAP LIGHT SUB-ASSEMBLY

(a) Remove the map light sub-assembly.

Click here

(b) Inspect the map light sub-assembly.

Click here

REPLACE MAP LIGHT SUB-ASSEMBLY

8.	CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (SLIDING ROOF)] - MAP LIGHT SUB-ASSEMBLY AND BODY GROUND)

(a) Disconnect the P20*1 or P14*2 map light sub-assembly connector.

*1: for TMC made
*2: for TMMC made

(b) Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly [sliding roof]) connector.

Standard Resistance:

for TMC Made

Tester Connection	Condition	Specified Condition
P4-9 (DWN) - P20-18 (DOWN)	Always	Below 1 Ω
P4-5 (UP) - P20-19 (UP)	Always	Below 1 Ω
P4-2 (E) - Body ground	Always	Below 1 Ω
P20-13 (GND) - Body ground	Always	Below 1 Ω
P4-9 (DWN) or P20-18 (DOWN) - Body ground	Always	10 kΩ or higher
P4-5 (UP) or P20-19 (UP) - Body ground	Always	10 kΩ or higher

for TMMC Made

Tester Connection	Condition	Specified Condition
P4-9 (DWN) - P14-15 (DOWN)	Always	Below 1 Ω
P4-5 (UP) - P14-16 (UP)	Always	Below 1 Ω
P4-2 (E) - Body ground	Always	Below 1 Ω
P14-20 (GND) - Body ground	Always	Below 1 Ω
P4-9 (DWN) or P14-15 (DOWN) - Body ground	Always	10 kΩ or higher
P4-5 (UP) or P14-16 (UP) - Body ground	Always	10 kΩ or higher

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

REPAIR OR REPLACE HARNESS OR CONNECTOR