Alarm goes off after back window was broken into and replaced

1997 FORD THUNDERBIRD
79,700 MILES • 4.6L • V8 • 2WD • AUTOMATIC
Avatar
LEONARDOSF
  • MEMBER
  • 1 POST
The back window of my car was broken. So, I had the back window replaced. Ever since then, when I lock the car and the alarm gets set, as normal, but then the alarm goes off 30 seconds later. Any idea what the problem is?
Mar 8, 2022 at 10:10 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

The idea that the rear window was replaced normally would have nothing to do with anti-theft. However, the anti-theft control module is located in the left rear wheel well behind the trim.

Since they would have been working in and around that location, something may have been left loose, damaged, or disconnected.

I attached a pic of the module's location. Locate it and see if there is anything that appears to be a problem.

Let me know what you find.

Joe

See pic below.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Mar 9, 2022 at 2:50 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.