On-Vehicle Inspection

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT AUTOMATIC LIGHT CONTROL SENSOR

Measure the continuity, waveform and voltage according to the value(s) in the table below.

Fig 1: View Of Automatic Light Control Sensor Connector Terminal Identification

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE:

With connector connected, perform inspection from the backside of the connector.

Standard voltage

Tester connection	Condition	Specified condition
6 - 3	Always	10 to 14 V
5 - 3	Ignition switch on (IG), Headlight dimmer SW in AUTO	Pulse generation (See Fig 2waveform 1)

Standard resistance

Tester connection	Condition	Specified condition
3 - Body ground	Always	Below 1 Ω

Waveform 1

Fig 2: View Of Waveform 1 Graph

Item	Description
Terminal	CLTS (5) - CLTE (3)
Gauge	5 V/DIV, 5 ms/DIV
Condition	Ignition switch ON (IG), Headlight dimmer SW in AUTO

HINT:

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