Looks like an NPTto flared pipe adapter into an aftermarket block fitting to me.
If it's leaking from the NPT pipe fittings teflon tape or teflon pipe goop might help.
If you are sure it's the flared pipe fitting thats leaking the other fixes I mentioned may work.
Looks clean compared to my...
If you can get it off you should check both the block brass fitting and the feed line for debris or a tiny crack.
Other than that loosen it and rotate it slightly which might clear the debris or allow the flare to re-seat better.
Anything plugged into an IGN 1 slot will go out also with that fuse..
It runs the Chime module (seat belt), and the rear defogger circuit. 20A.
Check the (3) IGN 1 ports for aftermarket equipment shorting out after you verify the factory stuff isn't shorted.
Need to check the light green wire at the pressure switch for +12 when A/C is selected.
Sounds to me like the blower and A/C clutch control module is shot not sending enough current out to engage the clutch.
If you don't get +12 at the relay blue wires with the system engaged, and as you...
The second blue wire does send +12 to the ECM and it gets it from the pressure switch that "should" power the compressor.
The easiest test would be to unplug the pressure switch put +12 on the blue wire in the socket from the battery, leave the key OFF and make sure that +12 goes through C497...
The second blue wire at the relay goes back to the ECM, when powered from the pressure switch +12 when the compressor is ON it tells the ECM the A/C is functioning and it bumps up the idle, no other function that I know so it's an input signal to the ECM not and output signal from it.
Out of the relay the light blue wire for compressor control power goes from the relay to C497 cavity A blue wire, to the other side of the connector also a blue wire directly to the pressure switch. If you put power on the blue wire at the pressure switch unplugged it needs to read +12 to a...
Yes correct, doubt its the pigtail though. Keep it removed and powered on the blue wire.
I was mistaken saying this signal goes back into the dash area, it goes out of the light blue wire on the pressure switch connector over to the passenger fenderwell area to the left of the blower motor...
Ok back to square one for a second. When in A/C mode, set at 65 A/C which should engage the compressor, do you get +12 at the pressure switch itself on the light green wire? If so use a short jumper and jump out the two terminals on the switch removed from the accum/.drier.
That...
I meant the blower fan the module controls, does it work properly even if the compressor does not engage does air come out the vents and can you change the speed of the fan?
Looks like solid state switch A sends the signal out the light green wire, then to the press switch and relay cutout contact out to the compressor.
Do you have +12 on the brown/wht wire on the Blower and A/C clutch control module near the purple wire terminal C on that connector?
Do you get +12 on the purple wire shown in the diagram when A/C is selected properly to turn on the compressor?
It's right in the troubleshooting part of the diagram.