Lexus NX manuals

Lexus NX: Inspection

Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Automatic Light Control Sensor / Inspection

INSPECTION

PROCEDURE

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Disconnect the 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

J6-1 (CLTB) - J6-2 (CLTE)

Power switch off

Below 1 V

Power switch on (IG)

11 to 14 V

Standard Resistance:

Tester Connection

Condition

Specified Condition

J6-2 (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 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

J6-4 (CLTS) - J6-2 (CLTE)

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

Power 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.

READ NEXT:

 Installation

INSTALLATION PROCEDURE 1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR (a) Attach the 2 claws to install the automatic light control sensor. 2. INSTALL NO. 1 SPEAKER OPENING COVER ASSEMBLY Click here 3.

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SEE MORE:

 Disassembly

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