I purchased and installed a used Chassis Brain Box ABS/ASCT-ES Control Module 34521164094 from ebay and when I first installed it the lights for the ABS and ASCT did not come in until about 50 miles. Both the ABS and ASCT lights are on constantly now. Does this need to be flashed or programmed at dealership? How much is it to program - Dealership vs. Mechanic shop? What is involved in getting this done, can you explain what they need to do in order for this to work properly. I have a 1997 328i automatic and it came out of an 1999 328I automatic. Thank you in advance for you help
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