I have tried for days to isolate the problem with my convertible top. It will not go down or up and I already have replaced the folding top switch. By using a meter I can probe the circuit and I have a good drawing to go by but none of it makes sense so far. There is supposed to be a folding top relay which is now suspect but I cannot locate it. My next step is to bypass all circuitry and apply the 12 VDC directly to the motor to see if it is bad. The motor did ohm good so I believe it is in good shape. Any suggestions?