Skip the auto shop - Our mechanics make house calls

Q: New installed ECM, vehicle won't turn on. Does it require key programmed? Doesn't even crank. Please help

asked by on

Does new ECm need to be programmed to key? Doesn't crank. From ON to start, just get all lights on dash. But doesnt start or crank.

My car has 125000 miles.
My car has an automatic transmission.

A: The ignition does not need to be programmed...

The ignition does not need to be programmed in order for the engine to crank over. You should check the starter relay on the fender near the battery to see if it is getting power from the ignition switch or the starter is not cranking and needs replaced.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car won't start

Hello there, there are few different faults that can cause the vehicle to cut off and die like this. The most common issues for this would include the fuel pump, cam and crank sensors, fuel filter, coil, battery, alternator, or...

Q: My truck gets bad fuel mileage and smells like gasoline.

It sounds like your engine may be running rich. Something like the EGR sensor could be bad. That would cause you to lose about 3 MPG. I would have a technician, such as one from YourMechanic come and check the...

Q: Engine shuts off suddenly

Hello. There may be a problem with the electrical system, which includes the battery, starter, and alternator. In addition to the starter relay that you just had replaced, it is possible that the starter itself needs to be replaced. I...

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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...