Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Inspection

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Vehicle Interior / Heating / Air Conditioning / Solar Sensor / Inspection

INSPECTION

PROCEDURE

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Disconnect the K3 automatic light control sensor connector.

*a

Front view of wire harness connector

(to Automatic Light Control Sensor)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

K3-1 (CLTB) - K3-2 (CLTE)

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V

Standard Resistance:

Tester Connection

Condition

Specified Condition

K3-2 (CLTE) - Body ground

Always

Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the K3 automatic light control sensor connector.

*a

Component with harness connected

(Automatic Light Control Sensor)

(d) Connect an oscilloscope to the automatic light control sensor connector.

(e) Check the waveform.

OK:

Tester Connection

Tool Setting

Condition

Specified Condition

K3-4 (CLTS) - K3-2 (CLTE)

2 V/DIV., 10 ms./DIV.

Engine switch on (IG), light control switch in AUTO position

Correct waveform is as shown

HINT:

The communication waveform changes according to the surrounding brightness.

If the result is not as specified, the automatic light control sensor may be malfunctioning.
    Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during sola ...

    Installation
    INSTALLATION PROCEDURE 1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR (a) Engage the 2 claws to install the automatic light control sensor. (b) Connect the connector. 2. INSTALL INSTRUMENT PANEL SAFETY PAD ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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