celica condensor fan

I have a 92 2.2 celica.The condensor and a line was replaced with a dryer and it was vacuumed and charged,but the fan for the condensor only works about 1 min.and then shuts off.I have a 12v bulb wired into the cannon plug and ran to the dash to see when it comes on.After starting the car and turning on the a/c the fan will come on after a few seconds and runs for about 1 min. and just shuts off,it happens while I drive or just idle.I cant figure out how to check the relays,the a/c is cold.the car does not overheat,but am afraid the head pressure is to high if the coil is not cooled.any help

Does the fan come on at other times? On some cars the fan is controlled by a high pressure switch in which it will only come on when needed.

Does the fan come on at other times? On some cars the fan is controlled by a high pressure switch in which it will only come on when needed.
No after running down the road for at least 4 miles it still does not come on,but if the car cools it will come on just like my first problem

Do You Know How Long Or Often The Fan Should Run,and If The Car Is Not Overheating Doi Have A Problem?

If it's not overheating you might not have a problem. If it is a pressure regulated fan it might run longer on hotter days. Or if you have a lot of wind going through the condenser (i.e. going down the road) it might not come on at all. You might want to have the pressures checked out to see if that is the case.