My engine turns over but won't start, my check engine light for my ECM has been on a few weeks. Now mechanic says have to get a new starter before he can tell if anything else is wrong. help!!

The problem you're experiencing with your 2010 Chevrolet Captiva 2.0D not starting, even though the starter relay, starter, and ground cable are okay and the battery is new, could be caused by a few different issues. Here are a few possible causes and solutions:

1. Engine control module (ECM) - The ECM may malfunction and not send the proper signals to start the engine. A mechanic will need to diagnose and replace the ECM if necessary.
2. Ignition switch - The ignition switch may be faulty and not sending power to the starter relay. A mechanic can check the switch and replace it if necessary.
3. Wiring issue - There could be a problem with the wiring between the starter relay and the ignition switch. A mechanic will need to check the wiring and repair any damaged or corroded wires.
4. Anti-theft system - If your Captiva is equipped with an anti-theft system, it may have malfunctioned and prevented the car from starting.
5. Engine sensor - there could be a problem with the engine sensor such as the camshaft position sensor, crankshaft position sensor, or Throttle position sensor. A malfunctioning sensor can prevent the engine from starting or running correctly.
6. Fuel system issue - There could be a problem with the fuel system such as a malfunctioning fuel pump or a problem with the fuel pressure.

It's important to have the vehicle inspected by a qualified mechanic to diagnose the problem and perform the necessary repairs. Some of the issues can be easy to fix, but some require more extensive repairs and knowledge of the systems.

did you replace the starter?,fuel filter,tune up,should check the code maybe something else .

Park neutral safety switch maybe be the reason for the no crank ! Try putting the vehicle in park ,then try to crank the engine . Testing the electrical circuit is the best way to trouble shoot this problem , along with do a voltage drop test on the starter circuit ! This will test the battery cables an connections .
Starter Voltage Drop
How to voltage drop test starter motor circuit
Does it have a manual or automatic transmission ? Manual ? clutch switch . Looking at a wiring diagram I also see a starter cut relay !
http://www.bbbind.com/free_tsb.html Free wiring diagrams . Enter vehicle info. year , make , model and engine size . Under system click engine , under subsystem click starting . Then click the search button , then click the blue link ! Check the starter cut relay also . Videos on youtube showing how to test a relay controlled circuit !

When you turn the ignition to start, do you hear the starter turning and the solenoid engaging the flywheel ? test your starter by jumping it and see if the engine turns over. If this works, then you might consider in checking fuel pressure. Do you have any codes in your ECM ?

check for power to the starter with the key in the start position.

I'm not sure that your starter is in good condition .You have to pull your starter out from engine .
Ensure the safety dental starter and the engine .
If you find that the dental starter Moving north and right .
You have to replace the starter .
good luck , and let me know .............

I hate to say this to you but make sure the engine is not locked up. If you can turn the engine, either by pulling on the belt, or by putting a wrench on the crankshaft bolt, try another starter. If you can't turn it, try another engine. (sorry for the insensitive attempt at humor)

ricks63toy, I believe that Ford still uses what is called an inertia switch even in the hybrids. This switch will shut off in the event of an accident shutting off the fuel pump. This is a safety feature built into the vehicle. Seeing that this is a newer vehicle I trust that you still have the manual. If not, the switches are usually located in the trunk. Look on the side walls of the trunk and see if you can locate it. It is usually marked by a sticker. When you find the switch, push the red button down until you hear a click. This will reset the switch and allow power back to your fuel pump. Good luck with this.

code p 0654 refers to engine rpm output--circuit malfunction ===causes wiring ---ECM
code p 0650 refers to malfunction indicator lamp(MIL)--circuit malfunction====causes wiring --MIL---ECm
also refers to crankshaft position/cam shaft position sensor bank 1 sensor A --correlation===causes wiring---CKP sensor ---CMP sensor--mechanical fault

First, make sure you can turn the engine by hand. If you can't then the starter can't turn it either. Have someone else turn the key and look for the source of the click...may be a relay. Go over the starting circuit with a volt meter. Check for power at the starter main terminal and then with the key turned to "start" check for power at the trigger terminal on the starter. Check battery voltage and check relay operation.
You have a neutral safety switch on the transmission if its an automatic and a clutch switch if it's a stick. Check them as well. Make sure battery grounding on fender and block are also clean and secure.