Hi, looking for somone who is very good with 89 supra air, i recharged system, everything works except to get compressor to run i have to poke my test light into brown wire at ac amp that closes ac clutch relay, this makes cold air, i tested climate controller, voltages fail tests so i bought a used one, same problem with used one, toyota wants 781.00 for new one, are the controllers weak? Thanks for your time Bill.