By activating the manual switch or opening the door q2 turns on for an instant in order to lead the output to the high level.
Car interior light delay unit.
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It monitors ignition and if ignition turned on the light fades as soon as the door is closed.
The interior lamp control module is located under the center of the instrument panel on the dash of your vehicle.
When the door closes and the dome light would normally turn off the dome light dimmer module takes control and holds the dome light on for a few seconds the delay feature.
The light is controlled by a manual and a door switch.
The black wire of the light unit connects to the white black wire of the car light.
It provides modern car functionality to the dome light by slowly dimming the light after 20 seconds when the door is closed and slowly increasing the light intensity when the door is opened.
This circuit may be used to automatically switch off an interior car light with a time delay of 15 seconds or 3 minutes.
This delay gives you the time to gather the seat belts find the ignition slot with the key etc.
The red wire of the light delay connects to the red wire of the car light.
Dome light dimmer is a smart circuit that adds several modern features to the basic dome light.
Interior roof light with a philips bluevision w5w light it s allot brighter and whiter.
If all the wiring looks in good condition i recommend replacing the interior lamp control module.
Look for any ground wires to the interior light circuits to see if they are loose.