marvin5881
Newbie
What I've tried so far.
Verified all Fuses
The Power connector to the low pressure switch gets 12v when the car is on. If I jump it, it doesn't cause the AC compressor clutch to engage
The Power connector to the high pressure switch gets 12v when the car is on. If I jump it, it doesn't cause the AC compressor clutch to engage
I Jumped both High and Low pressure switches at the same time
Power connecter on the AC Compressor gets 13v only if I jump the AC Relay
Only when I jump the AC Relay does the AC Compressor clutch engage
AC is cold and working when the relay is jumped
Pressure at the Low Pressure A/C Service port is 30 PSI but I believe it shouldn't matter because I jumped the low pressure switch.
Tried known good relays
The wiring underneath the engine bay fuse box is all good.
I replaced the ECM with a known good because apparently the ECM is what sends the ground signal to the pin on the A/C Relay to so that it can work.
I replaced the AC Temperature Controller in the dash.
Verified all Fuses
The Power connector to the low pressure switch gets 12v when the car is on. If I jump it, it doesn't cause the AC compressor clutch to engage
The Power connector to the high pressure switch gets 12v when the car is on. If I jump it, it doesn't cause the AC compressor clutch to engage
I Jumped both High and Low pressure switches at the same time
Power connecter on the AC Compressor gets 13v only if I jump the AC Relay
Only when I jump the AC Relay does the AC Compressor clutch engage
AC is cold and working when the relay is jumped
Pressure at the Low Pressure A/C Service port is 30 PSI but I believe it shouldn't matter because I jumped the low pressure switch.
Tried known good relays
The wiring underneath the engine bay fuse box is all good.
I replaced the ECM with a known good because apparently the ECM is what sends the ground signal to the pin on the A/C Relay to so that it can work.
I replaced the AC Temperature Controller in the dash.