Originally Posted by
bhindzioncurtain
New owner and read all I could on my nonworking alarm siren. Bought a new MB part on Amazon, date on part is Jan. of 2017. Followed instructions from this site and completed the job. Also vacuumed out the drains and ran water through them to make sure I do not have any plugs.
Finished the job and thought I would try it while the engine hood is up and nothing, no chirp and armed with drivers window down and opened door no alarm.
Since I am not original owner I have to wonder if they had the random alarm and did something to disable the circuit. Checked all the fuses and they all look to be there.
I might be reading this post wrong, but I didn't think you could arm the system with the hood up?