RM36D0EC _59 Vehicle Exterior _083096 LIGHTING (EXT) _0402644 AUTOMATIC LIGHT CONTROL SENSOR G

LIGHTING (EXT)  AUTOMATIC LIGHT CONTROL SENSOR  ON-VEHICLE INSPECTION  


PROCEDURE

Hide 89120A 1.INSPECT AUTOMATIC LIGHT CONTROL SENSOR

a.
E410318
1.51,0.198 1.885,0.417 0.375,0.219 0.823,1.26 1.24,1.26 true 1.385,1.854 1.542,1.354 true 0.135,0.104 0.344,0.26 0.208,0.156 10 false *a 1.615,0.219 2.042,0.625 0.427,0.406 10 false H1 0.417,1.156 0.823,1.323 0.406,0.167 10 false CLTB 1.198,1.875 1.604,2.042 0.406,0.167 10 false CLTE
*a Front view of wire harness connector
(to Automatic Light Control Sensor)


Disconnect the 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
H1-1 (CLTB) - H1-2 (CLTE) Ignition switch off Below 1 V
Ignition switch on (IG) 11 to 14 V


Standard Resistance:
Tester Connection Condition Specified Condition
H1-2 (CLTE) - Body ground Always Below 1 Ω


If the result is not as specified, repair or replace the wire harness or connector.


c.
E259758
1.531,0.292 1.885,0.542 0.354,0.25 1.833,1.177 2.042,0.823 2.042,0.823 2.333,0.823 true 1.458,1.167 0.969,1.167 true 0.188,0.135 0.438,0.313 0.25,0.177 10 false *a 0.573,1.073 0.99,1.25 0.417,0.177 10 false CLTS 2.396,0.729 2.813,0.927 0.417,0.198 10 false CLTE 1.635,0.323 1.948,0.521 0.313,0.198 10 false H1
*a Component with harness connected
(Automatic Light Control Sensor)


Reconnect the automatic light control sensor connector.


d.

Connect an oscilloscope to the automatic light control sensor connector.


e.
E276298N01
2.844,1.646 3.219,1.813 0.375,0.167 10 false GND

Check the waveform.

OK:
Tester Connection Tool Setting Condition Specified Condition

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

H1-4 (CLTS) - H1-2 (CLTE) 2 V/DIV., 10 ms./DIV. Ignition switch on (IG), light control switch in AUTO position Correct waveform is as shown


HINT:

The communication waveform changes according to the surrounding brightness.