having problems with the a/c system in my civic. 93 cx converted to r134a(94 complete a/c system, new compressor, dryer, and expansion valve). 1st compressor did not work and I believe it fried some things. cant get the a/c to work without jumping it. tried different relays, checked fuses, and checked low pressure switch(which does have power, jumped it to no avail). not a electrial genius but have been toying/swapping/working hondeas for about 12yrs so I have a little knowledge. just need some help troubleshooting.

 

Still using the stock 93 Civic A/C system wire harness? Have you tried jumping the thermostat/thermoswitch in the evaporator? Does it have voltage?

 

Im still running my 93wiring. Are you talking about the 2 wire sensor going into the evap. Ill check it in the morning. Test then jump

 

What are you jumping to make the A/C work?

 

Straight 12v. Switched

 

What wire or wire terminal? The Yel/Wht or Blu/Red wire? If you jump the unplugged connector for the thermostat, does the A/C work?

Not sure what you mean.

 

 

Late reply, problem was a/c switch. Located in dash piece.