Ac "I have a 1993 Toyota Corolla. The light for the A.C. switch doesn't turn on to kick the compressor on. the compressor has Freon, and on the relay is overidden, the compressor works, but the light doen't. All the fuses are OK."

SOURCE: No power for AC compressor

try removing the plug off the low pressure switch on the accumalator plug a paper clip into the plug and turn ac on if it comes on then your low pressure switch is bad or your low on refigerant.

Jeffery Lewis

• 329 Answers
• Posted on May 30, 2009

SOURCE: 2003 Toyota corolla A/C compressor not coming on fuse good, A/C charged, no pwer at compressor

it is located in the engine compartment fuse / junction box it is on the drivers side then cover to the box will show you witch one it is ( the relay will be white in color)

SOURCE: 2000 Ford Taurus AC compressor not working;

if compressor clutch dont kick in .it has a open in clutch coil.

SOURCE: Ac compressor won't kick on

Just had the same issue and posted. Just found the solution is the control module in the dash. Went to the junk yard since new is expensive on these units. Plugged new unit in, was able to charge a/c now blows cold as ice.

Harvey N Tawatao

• 3854 Answers
• Posted on Jun 23, 2009

SOURCE: 1995 z-28. air conditioner compressor won't kick

Your A/C pressure switch may have gone bad or the wire harness to it may have gone bad. The switch is along the low pressure line or on the A/C Accumulator ( looks like a silver canister) , Unplug the wire and you can jump it there and see if the clutch comes on, if it does try spreading the two tabs apart on the switch and clipping the wire back on. If it does not come back on you need to replace the switch, you can do it with out loosing to much R134A. Just got to be quick when you  remove the old one and placing the new one. The low side should have a reading of 30PSI to 50PSI and the high side should have 150PSI to 200PSI. Any other reading will give you poor A/C performance. Good luck and hope this helps.