Hi Guys ,i got problem with a 2003 mc a/c compresor,
compresor clutch not engage ,when i disconect the cts or high presure switch
the fan comes on,unit is fully charge ,if anybody help me with a/c wiring circuit diagram ? i need to jump the high presure switch but i don't know from where the signals come & go and don't want jump any wire and cause damage or fried something.

 

When that happened to Artoo (also a 2003 MCS) it was the clutch itself. Unfortunately I couldn't find one separate from the compressor. It was not a cheap fix. Not even close.

Sorry. Hopefully yours is different.

Rich

 

you right ,i found the wiring diagram then i check power from fuse box in engine area and at pin # 10 (red wire to compresor) is ok then i check
continuiti from conector to compresor socket its ok,tried operate the compresor direct from pin 10 and the clutch not engage,i need a compresor i think.