Toyota 4Runner manuals

Toyota 4Runner: On-vehicle Inspection

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)


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