Q: Security system won't let car start

asked by on February 08, 2016

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

Electric Problems Inspection $79.99 - $99.99 Get a Quote

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

How do I reset the air bags?

If you have been in an accident that deployed the air bags, then you’ll need to replaced and the system checked for integrity. Resetting the air bags loads them back into place, and resets the system, so that they’ll...

No crank and no start

Hi and thanks for your question. Remove a spark plug wire from one of the spark plugs, and put a screwdriver in the wire and put it to ground. Now, try starting the vehicle. If there is no spark, then...

Engine only runs at 650 or 1300 rpm's, and nothing in between 650 and 1300 or above 1300 rpm's.

Hi there. First check the air filter on the engine. A dirty air filter will starve a diesel engine and prevent it from running correctly. Then check the fuel / water separator and see if there is a drain valve....

Anti theft system light keeps disabling car. Know a way around it but its annoying. Will replacing the ignition switch fix this?

Hello there, a few different items can cause the security system to disable to vehicle like this. The most common causes would be: the security system module has failed the key is worn key cylinder failure faulty...

Code P0335. Crank position circuit code

Hello. Your crankshaft position sensor has failed. Most engines support a fall-back mode where engine timing is then determined by the cam position sensor. It is less precise than when the crank position sensor is used, but allows the engine...

can a alternator belt make car not start because I was driving my car and I ran out of gas and i put a little gas in? belt broke

Hi there. It is very difficult to diagnose this type of hard to start issue remotely due to the fact that both issues; running the vehicle out of gas and the alternator belt being broken can cause the car to...

Will my rims on my 1991 Toyota Corolla fit on my 1989 Honda Accord

Hi there - no, your Honda rims (OEM at least) will not fit on your Toyota Corolla. Even though the bolt pattern is the same, the center bore on your Toyota rims is 54.1mm, but your Honda center bore is...

After changing leaky valve cover gaskets and oil, I'm getting a rattle under cover and oil light and buzzer is now on 2000 Chrysler Town and Country

Hello. If you are getting this light and noise then you have low oil pressure. I would drain the oil and change the filter as it is possible that you got a bad oil filter. If the problem persists then...

Not starting distributor spark

Hi there. You need to see if the distributor is turning when the engine is cranking. If not, then the vehicle has a broken timing belt. I would usually check the timing belt to see if it is intact. If...

Related articles

How to Use GhosTrack as a Vehicle Tracking Application
The The GhosTrack application allows you to track a variety of important things in your life, including your children and your vehicle. The app can help prevent theft by allowing you to use two mobile devices to track objects or...
How Does a Starter Motor Work?
When you turn the key in your car’s ignition, the engine turns over and then cranks. However, getting it to crank...
How to Test a Starter Solenoid
Starter solenoids are attached to the starter. Test the solenoid with jump cables - when the solenoid fails, the car starter needs to be replaced.