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Home >> Hyundai >> 2005 >> Elantra L4-2.0L >> Repair and Diagnosis >> Lighting and Horns >> Ambient Light Sensor >> Testing and Inspection
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Ambient Light Sensor: Testing and Inspection

AUTO LIGHT UNIT




1. Remove the auto light unit (A) from the center support bracket left side.




2. Disconnect the 8P connector (B) from the auto light unit then inspect the connector on the wire harness side, as shown in the chart.
3. If the circuit is not as specified, inspect the circuits connected to other parts.

PHOTO & AUTO LIGHT SENSOR




1. Remove the photo & auto light sensor (A) from the right side crash pad upper.
2. After ignition switch ON, measure the voltage between terminal No.2 of the photo & auto light sensor harness side connector (B) and body ground.

OK: Sensor power (+5 V)

3. Check for continuity between terminal No.1 of the photo & auto light sensor harness side connector (B) and body ground.
4. If the circuit is not as specified, inspect the circuits connected to other parts.
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