Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Rain Sensor
Components
COMPONENTS
ILLUSTRATION
| *1 | RAIN SENSOR | *2 | RAIN SENSOR COVER |
| *3 | RAIN SENSOR TAPE | - | - |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT RAIN SENSOR
| (a) Disconnect the U3 rain sensor connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| U3-4 (SIG) - U3-2 (ES) | Engine switch on (IG) | 11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| U3-2 (ES) - Body ground | Always | Below 1 Ω |
If the result is not as specified, repair or replace the harness or connector.
| (d) Reconnect the U3 rain sensor connector. |
|
(e) Connect an oscilloscope to the rain sensor connector.
(f) Check for pulses.
OK:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 3 (MPX) - 2 (ES) | Engine switch on (IG) | Pulse generation |
If the result is not as specified, replace the rain sensor.
Installation
INSTALLATION
PROCEDURE
1. INSTALL RAIN SENSOR TAPE
HINT:
The rain sensor tape is reusable. Only replace the tape if it is damaged or contaminated with foreign matter.
(a) Remove the rain sensor tape.
(b) Clean the rain sensor sensing portion with a piece of cloth.
| (c) Peel off the smaller release sheet, and then attach the rain sensor tape to the rain sensor sensing portion as shown in the illustration. HINT: Use your fingers to push out any air bubbles from under the tape. Standard Clearance
|
|
2. INSTALL RAIN SENSOR
(a) Clean the windshield glass with a piece of cloth.
NOTICE:
- Make sure that there is no rain sensor tape residue remaining on the windshield glass. If there is, remove the residue.
- If there is any rain sensor tape residue remaining on the windshield glass, replace the tape.
(b) When installing a new rain sensor or when the rain sensor tape has been replaced:
(1) Peel off the release sheet.
HINT:
Do not touch the silicone surface.
(c) Gradually attach the rain sensor to the windshield glass surface in the direction indicated by the arrow shown in the illustration to prevent air bubbles from forming between them.
| *a | Stopper |
.png) | Lock |
.png) | Install in this Direction |
HINT:
Do not touch the silicone or glass surfaces.
(d) Push in the stopper to install the rain sensor as shown in the illustration.
(e) Connect the connector.
3. INSTALL RAIN SENSOR COVER
| (a) Engage the guide and 2 claws to install the rain sensor cover. |
|
Installation
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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