dbiddle

I finally got around to taking my car into the dealer. They located and repaired a broken ground wire. Having anticipated one of those "we have to replace the black box" repairs, a broken wire was a welcome surprise. Thanks to everyone for their problem-solving suggestions.

I checked for any indication that power was getting to the siren by listening closely and holding onto the siren while arming and disarming the alarm system. I could not hear any sound or detect any physical movement of the siren. This factory-installed security system does have a "Starter Interrupt" so the car is protected. I guess I'll have to decide how important the audible alarm is.

I pulled the siren out and tested it with a 9v battery as suggested. It reacted to the applied 9v by moving slightly and making a faint sound. I suspect that's all I should expect from the 9v is confirmation that the siren responded.This test would suggest that power is not getting to the siren. The potential for a problem with a fuse or relay was mentioned above. But, it would seem unlikely since the alarm system itself is working (lights flashing when I "broke-in"). I looked at the fuse boxes and manuals and found nothing to identify which fuse would be associated with the security system. I could not see any obviously blown fuses. However, I did not take each one out and look at it up-close. It appears that I am facing the replacement of what is probably an expensive "black box" somewhere in the alarm system. Is it time for me to go to the dealer on this?

I broke-in (used the key) and the lights flashed, but no sound came from the siren. So, it appears that the problem is either; (A) the siren is bad or ( power is not getting to the siren. In terms of (A), is there a way that I can test the siren itself? If I were to remove the siren from the car could I test it by applying 12v across it's terminals? Without a male plug, I'm not sure about being able to attach wires to the siren. In terms of (, is there such a thing as a 12v tester that I could insert into the male plug and test by "breaking-in" again? Otherwise, maybe I'll just buy a replacement siren and see what happens.

I should have mentioned that I had also verified that it's not in Valet mode. I will try breaking-in and see what happens. Thanks, Dave

The siren of the factory installed security system (H7110FS201) on my 2000 Forester stopped chirping when using remote keyless entry system (H7110FS101) when both locking and unlocking. The locks still engage/disengage properly and the parking lights still flash. Could this be just a siren gone bad or something more involved? I'm thinking of just installing a new siren and see what happens. Any suggestions?