Marlon Wouters Posted March 7, 2019 Share Posted March 7, 2019 Hi everyone, I have a 2016 Toyota Corolla L sedan. I have this car stand for a month and now the remote key fob is not opening or closing the doors. I replace the batteries but the issue is still there. Also the dome and map lights used to comes on when I opened the doors, but now it doesn't. It only comes on when I put the ignition in "ON" position. I took the car to a local dealer, and they perform test on both remotes to see if it's communicating with car and it does. So they told me the remotes are ok. However it still does not lock or unlock the car neither open the trunk, etc.. The car starts and run fine and everything else work flawlessly. I checked all the fuses and all were ok. I took the negative battery out and leave for 15 min. Issue remain the same. Can anyone tell me what could be the problem? Quote Link to comment Share on other sites More sharing options...
Marlon Wouters Posted March 19, 2019 Author Share Posted March 19, 2019 Hi Everyone, The culprit was the "Computer Multiplex Network Body Module" located behind the fusebox driverside. This controls the signal from the remote to the car. Quote Link to comment Share on other sites More sharing options...
Toyota Owners Club Posted March 20, 2019 Share Posted March 20, 2019 Hi Marlon Thanks for letting us know the conclusion. Rather annoying that it just failed while you weren't using the car, almost a red herring to think that it was related to being laid up and not just a unit failure. Glad its resolved for you now and hopefully not too expensive. Cheers, Trevor Quote Link to comment Share on other sites More sharing options...
Light3944 Posted December 9, 2021 Share Posted December 9, 2021 OK so the culprit was the "Computer Multiplex Network Body Module". Was this something you can fix yourself and if so how? Quote Link to comment Share on other sites More sharing options...
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