Auto Light Sensor: Inspection

While operating the auto light switch, check if the operations are normal as shown in the timing chart.

1. Auto light sensor value is always read at IGN ON.
2. Light is turned ON after 1sec ±0.1sec when auto light sensor value is same as light ON input value.
3. Light is turned OFF after 2sec ±0.2sec when sensor value is same as light OFF input value.
4. Tail lamp and head lamp are turned ON when sensor value is same as tail lamp ON input value.
5. Light ON value of sensor is based on the below table.
6. Head lamp signal is output when head lamp switch is ON. After head lamp is turned OFF, head lamp signal output is immediately stopped if head lamp OFF luminance condition is met at auto light switch ON.

Fig 1: Auto Light Sensor Timing Chart

Courtesy of HYUNDAI MOTOR CO.