9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
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Headlamp Igniter Module: Description and Operation
Xenon Lamp Ignition Transformer (663A)
Xenon Lamp Ignition Transformer (663a)
Main task
A high-voltage pulse is required to light the bulb and initiate discharge. This high-voltage pulse is generated in the ignition transformer (663a), which
also functions as a bulb socket. The high voltage pulse can normally reach about 23,000 V. When the bulb is removed, the high-voltage pulse can reach
30,000 V . Once discharge has been initiated by the high-voltage pulse, power is supplied to the bulb by the ballast (663b).
Type
The Xenon lamp transformer is type D2S.
Connection
The ignition transformer (663a) is connected to the ballast (663b) internally in the headlamp.
