Toyota Venza: Automatic Light Control Sensor

Toyota Venza Service Manual / Lighting (ext) / Automatic Light Control Sensor

Components

COMPONENTS

ILLUSTRATION

Removal

REMOVAL

PROCEDURE

1. REMOVE DEFROSTER NOZZLE GARNISH

2. REMOVE AUTOMATIC LIGHT CONTROL SENSOR

(a) Disengage the 2 claws and remove the automatic light control sensor.

Inspection

INSPECTION

PROCEDURE

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Disconnect the F4 automatic light control sensor connector.

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
F4-6 (CLTB) - F4-3 (CLTE)	Ignition switch off	Below 1 V
F4-6 (CLTB) - F4-3 (CLTE)	Ignition switch ON	10 to 14 V

Standard Resistance:

Tester Connection	Condition	Specified Condition
F4-3 (CLTE) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of wire harness connector (to Automatic Light Control Sensor)

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

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

Text in Illustration

*1	Component with harness connected (Automatic Light Control Sensor)

(e) Check the waveform.

OK:

Tester Connection	Tool Setting	Condition	Specified Condition
F4-3 (CLTE) - F4-5 (CLTS)	5 V/DIV., 5 ms./DIV	Ignition switch ON, light control switch in AUTO	Correct waveform is as shown

HINT:

If the ambient light becomes brighter, width A becomes narrower.

If the result is not as specified, replace the automatic light control sensor.

Installation

INSTALLATION

PROCEDURE

1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR

(a) Engage the 2 claws to install the automatic light control sensor.

2. INSTALL DEFROSTER NOZZLE GARNISH

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