Skip the auto shop - Our mechanics make house calls

Q: car cuts off after 2 seconds of running but my radio will still be on.

asked by on

when I off the car with the key, it dose not short down completely my radio will still be on which always run down my battery I driving it like that. until some one told me is the ECU and i bought another one to replace the one. when the one ecu was removed and the new one installed the car refused to program and eventually it started offing after two second. we decided to return the old ecu but still the car refused to start the green key light keep blinking. the car is here now and it done not start neither is it offing completely. what should I do as 7 electrician has checked it no way.

Hello. Likely it is a faulty immobilizer ECU causing the trouble. To help determine this you could call the dealership and ask them for the immobilizer bypass code for your vehicle. If the code is entered and the vehicle stays running then it is more likely your immobilizer ECU at fault. Other than an immobilizer unit the trouble could be caused by a faulty ignition switch or ignition relay. The Ignition switch and relay are critical components for sending the signal to turn the vehicle on and off. Your vehicle is presenting signs of a security lock out. Common causes of security lockouts with Honda and Acura are a bad battery or poor connections leading to the battery. I suggest that a technician test the ignition switch key reader, ignition relay, the battery, and its related connections.

Please keep in mind that here at YourMechanic we have a several technicians to chose from in a wide range of cities and states.

You are able to find a technician and schedule an appointment here

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!
  • Home
  • Questions
  • car cuts off after 2 seconds of running but my radio will still be on.

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: Ticking from inside like card in bike spokes

If it sound like its coming from somewhere in the dashboard, you might have a leaf or some other small piece of trash in your ventilation fan. try turning the fan speed up and see if the sound changes. Turning...

Q: Jeep starts, but turns off

Hello. This is a fairly common problem which can be checked several ways. First, turn the key off, get out of the car, then turn on alarm/security, which should lock the car door. Wait 2 minutes, unlock the security control...

Q: How do I get radio information for the station/song that's playing

Hi, More than likely, your stock stereo does not have the capability to display this information. It's only been within the last few years that nearly all new vehicles display the song/artist playing on FM radio. If you want this...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.