Last Modified: 11-29-2007 1.6 G
Service Category: Vehicle Exterior Section: Lighting (ext)
Model Year: 2008 Model: Sequoia Doc ID: RM000002WFA002X
Title: LIGHTING (EXT): AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION (2008 Sequoia)

ON-VEHICLE INSPECTION

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Check the power source circuit and ground circuit.

(1) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

K19-6 (CLTB) - K19-3 (CLTE)

Ignition switch ON

11 to 14 V

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

K19-3 (CLTE) - Body ground

Always

Below 1 Ω

(b) Check the waveform.

(1) Check the waveform according to the value(s) in the table below.

Standard Waveform:

Tester Connection

Tool Setting

Switch Condition

Specified Condition

K19-3 (CLTE) - K19-5 (CLTS)

5 V/DIV., 5 msec./ DIV.

Ignition switch ON, Headlight dimmer switch AUTO

Correct waveform is as shown

HINT:

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

HINT:

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