DESCRIPTION
The sliding roof ECU (sliding roof drive gear sub-assembly) receives slide and tilt signals and operates its built-in motor when the sliding roof switch (map light assembly) is operated.
WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | READ VALUE USING TECHSTREAM |
(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 / 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 | 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 | - |
Tester Display |
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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.
NG | ![]() | GO TO STEP 5 |
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2. | CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - BATTERY AND BODY GROUND) |
(a) Disconnect the U2 sliding roof ECU (sliding roof drive gear sub-assembly) connector. |
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(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
U2-1 (B) - Body ground | Always | 11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
U2-2 (E) - Body ground | Always | Below 1 Ω |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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3. | CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - IG POWER SUPPLY) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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4. | INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
(a) Remove the sliding roof switch (map light assembly).
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(b) Inspect the sliding roof switch (map light assembly).
Click here
OK | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
NG | ![]() | REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
5. | INSPECT SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
(a) Remove the sliding roof switch (map light assembly).
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(b) Inspect the sliding roof switch (map light assembly).
Click here
NG | ![]() | REPLACE SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) |
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6. | CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - SLIDING ROOF SWITCH (MAP LIGHT ASSEMBLY) AND BODY GROUND) |
(a) Disconnect the U11 sliding roof switch (map light assembly) connector.
(b) Disconnect the U2 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
U2-8 (CLS) - U11-12 (CLS) | Always | Below 1 Ω |
U2-8 (CLS) or U11-12 (CLS) - Body ground | Always | 10 kΩ or higher |
U2-10 (OPN) - U11-11 (OPN) | Always | Below 1 Ω |
U2-10 (OPN) or U11-11 (OPN) - Body ground | Always | 10 kΩ or higher |
U2-9 (CLS) - U11-24 (DOWN) | Always | Below 1 Ω |
U2-9 (CLS) or U11-24 (DOWN) - Body ground | Always | 10 kΩ or higher |
U2-5 (OPN) - U11-23 (UP) | Always | Below 1 Ω |
U2-5 (OPN) or U11-23 (UP) - Body ground | Always | 10 kΩ or higher |
U11-19 (GND) - Body ground | Always | Below 1 Ω |
U2-2 (E) - Body ground | Always | Below 1 Ω |
OK | ![]() | REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Roof Rack(w/o Rear No. 2 Seat): Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL NO. 2 ROOF CARRIER SEAL HINT: When installing the No. 2 roof carrier seal, heat the roof rack assembly using a heat light. Heating T ...
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Lexus Display
Audio system: Playing an audio CD and
MP3/WMA/AAC discs
CD player operation
Insert a disc, press the "MEDIA" button or select "DISC" on the
"Source"
screen with a disc inserted to begin listening to a CD.
CD top screen
Pressing the "MEDIA" button displays the CD top screen from any screen of the
selected source.
■ Selecting a track/file
Press ...