Repair Procedures: Inspection

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

If operations are abnormal, check the body control module.

AUTO LIGHT SENSOR value is always read at IGN1 ON.
LIGHT is turned ON after 2.5sec±0.2sec when AUTO LIGHT SENSOR value is same as LIGHT ON input value.
LIGHT is turned OFF after 2.5sec±0.2sec when SENSOR value is same as LIGHT OFF input value.
Tail Lamp Signal & H/LAMP signal is output when HEAD LAMP OUTPUT is ON.
When HEAD LAMP is turned OFF, HEAD LAMP signal output is immediately stopped if Tail switch off condition is met at AUTO LIGHT SW ON.
When it's HEAD LAMP ON furniture condition at movement in AUTO SW ON location at HEAD LAMP SW ON location, HEAD LAMP output is maintained with the pear which is carelessly.
The case that HEAD LAMP twinkles and isn't when moving SW during HEAD LAMP ON operation to the HEAD LAMP SW location at the AUTO location by AUTO LIGHT.

TAIL AND HEAD LAMP REFERENCE CHART

	Tail Lamp	Head Lamp
ON	0.81V±0.08V	Same as tail sensor value
OFF	1.41V±0.10V	Same as tail sensor value

Fig 1: Auto Light Switch Timing Chart

Courtesy of KIA MOTORS AMERICA, INC.

T1 : 12s ± 1s

T2 : 12s ± 1s