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The lighting control sensor may be defective or a failure in the lighting control sensor (rain sensor) adaptation is suspected.
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- Malfunction of the lighting control sensor
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- Lighting control sensor (rain sensor) adaptation failure
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Visually check the presence of scratches or air bubbles (diameter of 5 mm or more) on the windshield to which the lighting control sensor is installed.
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Q.
Is the check result normal?
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Replace the windshield (Refer to GROUP 42A - Windshield ).
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Check that the windshield wipers work normally.
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Q.
Is the check result normal?
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Refer to trouble symptom chart .
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Check if an ETACS-related diagnosis code is set.
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Q.
Is the diagnosis code set?
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Diagnose the ETACS-ECU (Refer to GROUP 54A - ETACS, Diagnosis Code Chart ).
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Check if a lighting control sensor diagnosis code is set.
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Q.
Is the diagnosis code set?
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Diagnose the lighting control sensor. (Refer to GROUP 54A - Headlamp, Diagnosis Code Chart ).
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Check that the lighting control sensor (rain sensor) is installed to the windshield glass correctly.
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Q.
Is the check result normal?
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Go to Step 6 after completion of the lighting control sensor (rain sensor) adaptation ( ).
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Install the lighting control sensor (rain sensor) to the windshield glass correctly (Refer to GROUP 54A - Lighting Control Sensor Removal and Installation ).
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Check the lighting control sensor (rain sensor) after completion of the lighting control sensor (rain sensor) adaptation
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(1) Windshield glass surface should be dry.
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(2) Pour water to the windshield glass surface where the lighting control sensor is installed.
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Q.
Does the windshield wiper operate?
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Operate once or more : Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
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Does not operate : Troubleshoot the rain-sensitive wiper function (Refer to Inspection procedure 8 ).
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