2000 Honda Civic 1 4is Year 2000 Green Key Light On Dashboard Blinking Non

We don't have the information for your vehicle but security system fuses should be hot at all trimes and is usually underhood. For other Civic models it is linked to the headlight relays.
Check the two fuses in diagram, underhood.

I don't see how rain has anything to do with it unless water is getting to the control unit and this could mean the unit is bad.

Hi KHLow2008.
U replied to my question 3 years ago also...Hope is all good for you..There is no water in there..But the car was very humid inside...And the exact same conditions as the last time this happened..I remember i fixed it by taking off one of the fuses and then puting it back again..I just dont remember if it was in the car under steering wheel or under the hood..If under the hood then it's fuse nr 9 ?

I am fine, thank you.

Based on the diagram for other Civic models, it is fuse # 48 and 54. The 9 is the terminal identifiaction for the fusebox and you won't see it.

Ok.I will check this in the morning to see..Also in the car fuse box there is a fuse labeled interlock.Does it have anything to do with it?

fuse diagram inside car looks like this

How about the one underhood?
The interlock is for preventing the gear shift to be released from P without depressing the brake and is not related to the security system.

Ok, i Will follow your advice in the morning and let u know if i succeed.

No luck in the fuse box under hood...all fuses seem to be ok...but the engine compartment is quite humid..should i spray in there with a spray for humidity?

I also noticed some water coming i the passenger cabin from the top of the right door..Under this behind the kick panel is the PCM isnt't it? maybe water has gone through there?Is it easy to take it apart and try there?

PCM should be behind the glove box. If water is getting into cabin, it can cause problems with control modules and you should get them dry asap.

I was also told to unplug the battery and wait for ten mins then plug it back again and see...think this would help?

If you need to do that and it works, it indicates a fault with the control modules and you would not know when it is going to fail.

http://109.87.33.216/manuals/auto/

found also this that it may be of use to you...it has manuals for some cars

Thank you.
These are owner's manual are are helpful for identifiactions and general information but seems it is rather difficult to get the exact year and model as I could not find the menu to link to models I am looking for.