I just bought a new LED light bar for the OBC in my 1989 325is. I found out that only the date, time, timer and temperature functions are working. I heard that a faulty speed sensor could cause this problem but it would also stop the cruise control from working, the cruise control works fine on my car. The functions not working are things like MPH, MPG, average MPG and range. When I try to use one of these functions it just comes up with ---- or 0.00. I am at a loss and any help would be appreciated.
Thanks
Thanks
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