SOURCE: Head light only work during day time. At night
You have a defective Auto Headlight sensor, replace the sensor and it should work perfectly.
SOURCE: 2000 Chevrolet Silverado 1500 The
Check the emergency brake pedal and make sure it is not on a bit. When the emergency brake are applied the daytime running light go out.
Is this security light the type with the built-in motion sensor?
If so, these also have a built-in photo-eye so that it does not come on during the day.
The photo-eye can go bad where the symptom is "on all the time"
Also some of the motion sensors have a chip inside that "locks on" if you flip the wall switch on and off three times quickly. Once "locked-on" I think you have to turn the wall switch off for at least 1 minute to reset.
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Original Launch X431 ICARD Scan Tool
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