The Lacrosse from hell, the next saga

[ACEPA]

For my China 2011 Buick Lacrosse 2.4L I ordered a new Mintt ECU with VIN number loaded and had it delivered to China. With knowledge my ADC was bad and misreading voltages I needed a new ECU bad with none available here. So when is a plug and play ECU not really plug and play. I dropped in the new ECU and got two codes. Immobilizer not verified and crank case sensor needs learning. With my low budget autel AP 200 it was too low end to help. What made matters worse was I run to my local Buick 4S shop and they attempted the learning process for but got stuck with an E4399 error on his laptop saying ECU data could not be verified. Any suggestions or am I at the mercy of GM controlling dealership and programming fees? On my new ECU my autel scanner can't read the new ECU as well.

 

[richardnewton]

I don't have any experience with ECMs unfortunately.

This tech video looks like a similar problem on a 2011 Chevy Equinox with "same" 2.4L engine (not hybrid). I don't know if the ECM is the same. Walks through steps with his Autel:
- Replaced ECM
- P0315 (crank position variation not learned),
- P0633 (immobizer key not programmed).

"E4399/M4403 is generally related to a communication loss between the module and the programming tool. This could also be due to a drop in battery voltage, aftermarket components, connections, wiring issues, or a delay or interruption in the data transmission into the module."

Some other ideas

- Make sure battery is fully charged to 12.6 volts (edit - apparently there is a special charger low-ripple, high capacity dealers use when programming a car in the bay).

- Disconnect any non-GM accessories (e.g. radio, GPS tracker, etc.)

- Were any wiring harnesses replaced at any time?

I don't know if this device update is relevant to your situation,

VXDIAG GM SPS Online Programming E4399 Server Error Solution - VXdiagshop.com

Problem: I try to read e38 ecm flash online with VXDIAG VCX NANO GM and SPS (Service Programming System) subscription. It failed me and dislayed [...]

blog.vxdiagshop.com

 

[richardnewton]

This is the GM Techconnect programming video for a Chevy Malibu 2.4. He needed to enter "vehicle theft deterrent system" to program the original key at the end of the video (had to wait 12 minutes before could begin the programming for security purposes).

 

[RD_Atlanta]

It sounds like your car's VIN may not have been configured. Perhaps you could ask the local dealer to check to see if your VIN was configured. Its difficult to say but maybe they would connect and check it for no charge. But of course, they will charge you if they need to change it. Here in the states, I hear they charge $150 USD for entering your car's VIN.
More specifically, what was the problem with the original PCM?