Can anyone tell me how to trouble shoot the A/C system ? The light doesnt come on on the A/C button and the clutch never engages The fuses in both fuse boxes are good and I switched the relay with the one for the horn still nothing I can turn the compressor and it feels fine. Any ideas? Thanks Mike

Welcome to AF.

Are you using any service manual with wiring diagrams to troubleshoot? It would help. Although the fuses may look good how about the 12 volts at the fuse socket(s). It sounds like the climate control is not getting the 12 volts, therefore the AC clutch relay will not energize.