Mazda 6 - Discharge Headlight Control Unit

T16
EXTERIOR LIGHTING SYSTEM
Structre And Operation
1. The high voltage pulse (alternating current approx. 25,000 V) traveling from the discharge headlight control unit
is applied between both discharge headlight bulb terminals, energizing the xenon gas in the bulb.
2. Based on the energizing of the xenon gas, the temperature of the discharge headlight bulb interior increases,
vaporizing the mercury and discharging the arc.
3. By the mercury and discharging the arc, the temperature of the discharge headlight bulb interior increases
further, metallic iodide is vaporized and separated, and metallic atoms are discharged, producing light.
End Of Sie
DISCHARGE HEADLIGHT CONTROL UNIT
A6E811201052T05
Function
• Controls the amount of electrical current while the discharge headlight are on to maintain optimum brightness
together with lighting stability.
• The failure detection functions are as follows:
 Abnormal input detection function
 Abnormal output detection function
Structure And Operation
• Built into the headlight and installed on the headlight lower side.
• Switches the direct current from the battery to alternating current and optimally controls the current supply
output to the bulb.
A6E8112T111
1B+
2 Discharge headlight control unit
3Terminal
4 Discharge headlight bulb
5 Xenon gas
6 Metallic atoms
7 Metallic iodide
8Mercury
9 Light
1 Discharge headlight control unit
A6E8112T121