2004 Hyundai XG350 "connection err reset" Questions

...reset the stereo system Receiving message "Err 2" and the cd does not load, but the stereo works. The manual says to reset, but does not explain how to do so. To reset remove your negative battery ...

I Purchased an OBD2 meter. I connect meter to I Purchased an OBD2 meter. I connect meter to vechicle turn on key to second position push the link button All i get is Err You have a generic code reader

...reset to factory. You can have the OBDII scan system tool check the engine status for error codes. I would attempt to run the van for at least 8 miles. It takes about that long for the car to relearn ...

...reset with the factory codes if the power is disconnected and re-connected). I would never charge a battery when it's hooked up to the vehicle even if the charge is low. You would be taking a gamble ...