Does anyone know where I can purchase a a/c compressor clutch relay for my 96 integra.
Without reviewing the wiring schematic, I honestly do not know if the ECU closes the ground circuit. I would think it would, rather than sending 12V, but I cannot confirmThe pressure was at factory spec, I weighed it in. I jumped the pressure switch and the compressor still wouldn’t run, but the condenser and the radiator fan came on.. isn’t the ecu supposed to send the ground to close the compressor clutch relay once you push the ac button?
You'll want to diagnose the electrical wires starting at the A/C compressor and working your way forwards and backwards. See the attached electrical diagram...Any suggestions??
You'll want to diagnose the electrical wires starting at the A/C compressor and working your way forwards and backwards. See the attached electrical diagram...
View attachment 105972
You'll also want to check your A/C manifold pressures. Too high or too low will trigger the A/C pressure switch to open, breaking the current and forcing a safety shutdown. FYI, overriding the safety shutdown via 12 VDC introduction at the compressor for extended periods will destroy the compressor. It's ok to test very breifly, but do not leave it running.
Come back and let us know what you found.
You test it by using A/C R-134A manifold gauges to check your low side and high side refrigerant pressures. If they're too far off, the switch acts as a fail-safe to prevent the compressor from self-destructing. Weighing is good, but doesn't account for PAG oil in the system. Here's the technician's A/C chart. Look at pressures after you look at the part below... by the way, why did you add refrigerant that needed weighing? Did something get replaced?Thank you for the diagram.. with all the checks and tests that I have done I’m very confident that The lack of Ground that closes the relay is the issue. How do you test the pressure pressure switch and also how do you remove it.