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hey guys, I been trying to do some research on a similar kind of problem but I can’t seem to find anything and this conversation was the closest thing I’ve seen relating to my problem. So that beeping sound doesn’t work when the lights are left on and with the door open. Also my key fob won’t unlock or lock the doors, the headlights won’t flash and the horn won’t honk. Also my dome light doesn’t come on when I open my door but the switch is in the correct mode to come on when the car is unlocked or the door is open. Lastly my door switch won’t unlock and lock all doors with the car off but it will with the car running.
Ive checked all the fuses relating to the issue and all of them are intact. I haven’t checked every single fuse in the fuse box though.
does anyone have any ideas, advice or suggestions? I’d really appreciate the help, thanks in advance!

 
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Moved to a new thread, please don't reply to 15+ year old threads.

Work on one issue at a time, no alarm when lights left on and door opened. I'm going to guess this is just a failed door ajar sensor. Next to the door latch on the body is a little black sensor. Remove it, then use a paperclip or something to jump the two wires in the connector. Do the dome lights then come on?

 
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Yes, this little black plunger sensor can get mangled if a seatbelt latch has been slammed shut by the door, for example.

 
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Were you ever able to figure this out? I’m having all of the same issues and it started doing this after changing out the radio. Could it be something behind the radio or could something just have gone bad at the time?

 
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did you get this fixed and how? Sorry I know I’m responding a little late