2003 Avalon, alarm going off by itself (replacement, Lincoln, Toyota, car)

[rossmoyne]

I have a 2003 Avalon with almost 190K miles. The alarm has been going off by itself a lot lately.

Any ideas on what is causing this?


Thanks.

[need4speed2012]

It sounds like you have a bad alarm control module that's causing this.

The Toyota part # is 8973007021 and it retails for $313.84 plus labor, usually 1-hour !!!

[Don in Austin]

Originally Posted by rossmoyne

I have a 2003 Avalon with almost 190K miles. The alarm has been going off by itself a lot lately.

Any ideas on what is causing this?


Thanks.

Could be the hood switch. Thump on the hood and see if that sets it off.

Don in Austin

[POS VETT]

Has one of the doors been opened using some kind of a slim jim?

[rossmoyne]

No slim jims that I know of. Just started going off at random times. Like 2:30 in the morning, or when my wife is at work. No rhyme or reason.

How hard is it to change the alarm control module?

Thanks,

[topher5150]

I know with my Lincoln Mark VIII it was a common issue, and something in the door latches would get gummed up making the car think the door was open which would trip the alarm.

[CCc girl]

OP, it's located under the right hand side of the dash.

Where are you located?

[rossmoyne]

what did you do to fix it?

[CCc girl]

I didn't fix it, I'm trying to find you the part cheap nearby to you.

The general consensus is that replacing the alarm computer modile will fix it. If I can find you one for fifty bucks it would be a risk worth taking. At the worst you have a spare part.

It may involve removing a few screws and unplugging/plugging in the replacement and putting the screws back in.

[00molavi]

On a 2003 with 190K miles I would just deactivate the alarm and be done with it. If you are worried about theft and don't have comprehensive coverage, maybe get a club.