Q: Security system won't let car start

asked by on

I changed the starter, and now my security system won't let my car start.

I strongly suggest allowing a technician to inspect the vehicle’s electrical system as it may simply be wire out of place or a blown fuse causing the vehicle not to start. When immobilizer systems become problematic usually immobilizer components themselves will only require reprogramming and rarely have to be replaced. However 90% of immobilizer system repair and reprogramming must be performed with specialized computerized equipment that is only available at the dealer.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Security system won't let car start

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My timing belt needed replacing.. It's in the auto shop and it still wont start what could it be

In addition to the timing belt, there many other things that may cause the vehicle to stop running, which are also related to the control of the ignition timing. The camshaft position sensor and crankshaft position sensor are also both...

Q: No start after crankshaft position sensor replacement

I would recommend putting the old sensor back in and continuing to drive it. If there are no Check Engine Lights on and it performs as it should, you should not have any problems. If you installed by recommendation of...

Q: Putting transmission in reverse grinds gears but not when changing any of the forward gears.

Hi there. The issue could be either the shifter fork being bent or the reverse gear is burned up causing the transmission to grind when going in reverse. I recommend seeking out a professional, such as one from Your Mechanic,...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...