No crank, code P180C

The owner said that the steering feels strong that was his reason for replacing it.

Do they still have the part? Yeah, I have the old steering.

Good evening, friend!
Thank you so far, but please I want you to help me and analyze this.
From the picture below, I check ignition voltage on ECM Connector X1(LAF )51 using test lamp and it illuminated brightly. I also check battery voltage to ECM on XI(52) and it illuminate brightly. Then I further check X1(62) for ignition voltage using test lamp it didn't illuminate, I also checked X1(73)for ignition voltage, but no way it didn't, what could cause?

Okay, thank you once again.
I still want to ask, is there a way I can test power steering module to see if it was the problem since my scanner cannot be able to scan communication BUS to see the module that is not communicating?

Hello!

Thank you for your assistance so far, I had done the test with the older part (power steering assembly) and old ECM, lo and behold the u0100 (communication issue) is gone and only left with p018c (fuel pressure sensor "b" circuit low). Again, the key light is blinking continuously to show if there's immobilizer problem which my scanner was unable to read because the vehicle was not among on the list that supports enhanced diagnostics. Please send me the diagram to troubleshoot the fuel pressure sensor.

Hello!
Thank you once again.
Yesterday I did a lot of testing starting from putting the old ECM and power steering module, and I diagnosed the vehicle, and it stated as follows:
1. Stored fault -p018c
2. Pending fault- p018c and u0100
Permanent fault- p0602, p0606, p018c and p062f.
Then I disconnected the old ECM and put the New ECM and diagnosed it, it displays the same code and added B3055 (No transponder modulation).
At this point I said let me disconnect the ECM and try to connect without ECM and to see if it can communicate, as I disconnect the ECM, the Check Light went off and I connect, it connected, and I scanned it still display all those codes. At this point I was confused and said this is not the problem of ECM or power steering but BCM. Then I used another scanner to scan, and it display as follows, look at the pictures below, the first picture was when I changed the 2 ECM and scanned. The second, third, fourth and fifth was when I disconnected the ECM entirely and scanned only the BCM with another scanner.

Look at what I am thinking, there's never a way 2 ECM can report the same thing, if this is ECM issue, immediately I put the new one those code will disappear, but I will see a mobilizer code. Again, if this is ECM issue, the moment I disconnect the ECM there will be no communication but upon I disconnect the ECM it still communicates showing that the module that establish that communication is still on the vehicle which I suspect to be the BCM but not the ECM that has been disconnected. I still suspect the BCM. What I will do now is to re-initialize all those modules if it didn't solve it, I will reprogram all the module and if it didn't work, I will replace the BCM.

Yes, I do. Yes, I am starting the communication process again.

Note: It is very dangerous to leave your scanner plugged-in while unplugging and plugging the battery head because it can easily flash or bricked the scanner.
Again, from the design of this vehicle, that code you are referring to ECM might not be the ECM actually, it might be the BCM that's why the communication failure codes are stored there.

Otherwise, this code is talking about any ECU that this code is set in. Yes, look at the pictures below.
Those codes P0602, P0606, P018C, and P062F are permanently stored in the BCM memory. Even if you disconnect PCM and scan, you will still have them back, if you still plug the PCM, you will still have them. So, the best thing is to find another BCM and plug it in, if those codes disappear, then the BCM was flash or bricked.

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.