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I'm using OBDII and after querying the rpm and the fuel, all the light in my dash board is lighting. How do I need to query the car?

Why might this have happened?

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    Welcome to Motor Vehicle Maintenance and Repair! Sounds like something's not too happy but we haven't got much to work on - any chance you can tell us the make and model of the car? The details of the OBD-II reader you are using would also be a huge help. Commented Nov 19, 2018 at 16:47
  • I'm using my own develop OBD and I HAVE PROBLEMS WITH CITROEN C1 Commented Dec 5, 2018 at 10:09

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