Thank you so far for your support and assistance.
I have come to tell you that I have solved the problem of the vehicle and it started yesterday morning.
Procedures are as follow:
1. The vehicle does not read vin number.
2. My Bluedriver scanner which I entrusted so much was unable to communicate with it but my obdlink and obdii does.
3. I disconnect the new steering and plug the old one and the same problem of not starting still remain.
4. I trace all the communication lines, and all are correct and still display ECM, power steering and TCM not equipped
5. Finally, I leave the battery head plugged-in and disconnected BCM sockets. I try to connect scanner when I turn ignition on, unfortunately there was no power to the dashboard and scanner could not connect.
6. I open the BCM box to visually inspect for any damage on the board but I could not see any, I couple it back and when I was about to connect the BCM sockets, which was when I removed the battery head and immediately after connecting those sockets, I put it in battery head and the central lock shoot. I still used test lamp to probe BCM terminal that carries ignition power to ignition switch and I turn the ignition on and then off, the ignition remains on, I did it for three times before I removed the test lamp I used to probe the BCM terminals. Ignition went off and I turn it on and connect scanner it connected and read vin number, I cranked and it started. I recheck communication using Bluedriver as it was not connecting before, and it connected and read few codes on ABS and engine. So that's how I technically reset the BCM and solve the vehicle problem.
Friday, December 3rd, 2021 AT 10:37 PM