immobilizer system

2010 MAZDA 3
4,000 MILES • 4 CYL • FWD • MANUAL
Avatar
AUSTIN1KR
  • MEMBER
  • 2 POSTS
I can't start my engine because the security indicator light illuminates. how do I repair it? would you tell me how to start my engine? Do I have to reset the electronic codes in order to repairing the immobilizer system?
Oct 18, 2010 at 11:42 PM
Advertisement
Avatar
KASEKENNY
  • CERTIFIED EXPERT
  • 18,907 POSTS
There are a number of things that can cause this, but I would suggest starting with checking for codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

More than likely if we have a key issue or something else in the system, we will have codes but if not, then more than likely we have a key issue.

https://www.2carpros.com/articles/how-to-reset-a-security-system

At this point, the best thing to do is perform the reset process so I am attaching the process below. If this fails, then we will need to replace the key and retest.

Please let us know what questions you have, and we can go from there. Thanks
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Nov 8, 2021 at 6:20 PM