Look Who it Was Random video

Figuring out Jeep AW-4 TCU Comms Part 2

1,716 views · Published 5 February 2017 · 44:40 · Indexed 26 October 2026

Channel: NickInTimeFilms · 2017 · Autos & Vehicles

Watch on YouTube

TCU Comms Part 1: https://youtu.be/PHNbXkgNL6Y?t=6m16s
TCU Guts: https://youtu.be/5sJNwAqc34A?t=29m50s

Was finally able to push through and figure out the AW-4 TCU communication circuit! The TCU does all the hard work for you, just feed it 5v's and out comes a signal!

For my R.E.M. I needed a 1k ohm resistor as an external pull-up so I could read long distances and that's it. Hook it up to an RX pin, set your Baud to 500 and you're golden!

If you'd be interested in my TCU reader code by itself or anything like that, let me know!

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