Hello everyone, I tried adding a remote to the sequoia and got a U2100 code and it would not program. I tried 3 different tools and manually too. Did some search and there's nothing about that code U2100 remote system fault. I've notice that it does not have CAN L AND CAN H either, just K line. I followed the steps manually, does anyone know anything about the U2100 code. No history on this car 245k miles. No DTC'S and only k line comms. Thank you.
Thanks but that's not for toyota i think, description for U2100 is remote system fault , and does not let me enter wireless remote programming to add more remotes. The one you mentios has to do with SRS system. And i got no other codes. Thanks.
So, I did a full scan of system and came back no communication with passengers door ecu. Now I'm thinking that U2100 is set because the wireless remote ecu can not communicate with door ecu, that would also make sense as why it does not go into remote programming.
Now I have another question, everything at that door is working fine but scanner says ecu is missing ( no communication) how would I go to test that? Wire diagram shows multiplex line coming from drivers door and then going out to back door if it was a bad module why can I talk to back door if wire goes through passengers door first?
Thanks.
So, I did a full scan of system and came back no communication with passengers door ecu. Now I'm thinking that U2100 is set because the wireless remote ecu can not communicate with door ecu, that would also make sense as why it does not go into remote programming.
Now I have another question, everything at that door is working fine but scanner says ecu is missing ( no communication) how would I go to test that? Wire diagram shows multiplex line coming from drivers door and then going out to back door if it was a bad module why can I talk to back door if wire goes through passengers door first?
Thanks.
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