Codes U0100 and 0101, will not start?

Was this car under water? I would start by checking all fuses, make sure the battery is good before you begin. Also, check for any main grounds that have been left off. They don't have pin outs but I did get the engine and transmission wiring diagrams so you can check for power and grounds.

U0100 - Lost Communication with ECM/PCM:
U0101 - Lost Communication with Transmission Control Module (TCM):

Here are the fuse locations, please check the fuses for power as well with the ignition system on.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

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Check out the images (below). Please let us know what happens.

The vehicle was not under water. You did not include computer data I.e communication line circuit and communication junction connector's location to check why the ECM is not communicating, please send the computer data line circuit and data line junction connectors and their locations.... Thanks

Please send the communication diagram from DLC to ECM please and data line junction connector.

From this diagram you sent, I see C1 diagram on ECM CONNECTOR, What of C2 diagram on the second ECM CONNECTOR?

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