Skip the auto shop - Our mechanics make house calls

Q: Car won't start and immobilized light flashes

asked by on

About 2 weeks ago my car started acting like it didn't want to start. I would try to start it and it acted like there wasn't enough power to turn over the engine. But if I turned the key to the off position and tried again the car would start right up. Now 2 weeks later it won't start without a jump. The car has power...locks, Windows, and radio all work. I turn the key and All I get is tick tick tick tick tick. The only thing abnormal that I notice is the immobilizer light on the dash flashes when I'm trying to start it. I took it to autozone and the battery tests fine. Any ideas?

My car has 150000 miles.
My car has an automatic transmission.

Try using an alternate key if you have it. If it starts easily with another key, then the first key is faulty and has to be replaced. If it behaves the same with any key, then it is possible it has a bad ignition switch or possibly a bad pcm - Power Control Module. Use the fuse box diagram and search for PCM fuses. There are two of them I believe. If either is blown, then that’s a sign there is either a bad connection or short at the pcm connector(s) or the pcm itself. If you would like, a certified technician from YourMechanic can come to your home or office, and make possible replacements to your ignition switch and inspect your wiring.

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!

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: Starting problems, 1994 BMW 318is

Hello there. No start faults are common issues on older vehicles such as your 1994 BMW 318is. There are a variety of causes for a no start condition. The most likely are the starter, battery, ignition switch, fuel pump, fuel...

Q: My car starts to shake when I turn it on and it gets cold. What can be the problem?

Hello there, many faults will cause your 2010 Mazda 3 to run poorly when cold and shake. Common faults would be the coolant temperature sensor, vacuum leak, thermostat, spark plugs, coil, or wiring harness fault. The leak under the...

Q: My Check Engine Light is on - 2008 Mazda Tribute

Hi there: The little engine icon is typically the check engine light, which is triggered when an error code is activated and stored in the ECU of your Mazda Tribute. If the engine is running hot, it's most likely that...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...