Toyota 4Runner Quiz
Vehicle Exterior

On-vehicle Inspection

In this manual: Vehicle Exterior
General — 25Audio / Visual / Telematics — 283Brake — 187Drivetrain — 204Power Source / Network — 79Steering — 76Suspension — 130Vehicle Exterior — 391Vehicle Interior — 693
~1min read
ON-VEHICLE INSPECTION PROCEDURE

1. CHECK AUTOMATIC LIGHT CONTROL SENSOR

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

G2-6 (CLTB) - G2-3 (CLTE)

Ignition switch ON

11 to 14 V

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

G2-3 (CLTE) - Body ground

Always

Below 1 Ω

(c) Reconnect the G2 sensor connector.

(d) Check the waveform of the G2 sensor connector.

Waveform:

Tester Connection

Tool Setting

Switch Condition

Specified Condition

G2-3 (CLTE) - G2-5 (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.

If the result is not as specified, there may be a malfunction in the automatic light control sensor.

Text in Illustration

*a

Front view of wire harness connector

(to Automatic Light Control Sensor)

Test yourself

A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.