98 ranger the ac dosent work ,took the ac switch out and there is a grey white wire cut it is on the ac switch cannt find where it goes it is about 5in long anyone know if it goes in a harness or where?

 

Well has it been working ok, but just didn't turn on one day?????

Check the A/C relay's fuse.

Check or swap out the A/C relay, with a like relay, not needed to run the engine, or
try thumping, the A/C reay & see if it's stuck & you can wake it up.

Check the A/C low pressure switch electrical connection. If it looks ok, try thumping it & see if the compressor will start. If not, try jumpering it & se if the compressor's clutch will engage.

If so, don't let it run long, until you check the systems state of charge.

If thumping or jumpering the low pressure switch doesn't cause the compressor clutch to engage, check it's electrical connection & do a continutiy check on it.

Let us know what you find.

 

T got the truck used ac never worked if i run power to the compressor it will cool down changed the relay and checked the fuses but there is a grey and white wire that is one the back of the ac switch and it looks like it is cut where does it go ?

 

The only grey/white wire I can find goes from the Compressor Clutch Relay to to the compressor.. where it splits off.. one part goes the the compressor itself and the others goes to a diode which diverts around the compressor. This would be the main power supply to the compressor.

I also found a grey/yellow wire which comes out of the Instrument Fuse Panel (Fuse #10, 7.5AMP) down to the blend door actuator, and splits off to the A/C Heater Control Assembly, supplying 12 volts to the whole thing.

Hope this helps. Wish I could post the diagram for you, but I no longer have access to a server.

 

The only colors that I see in my manual that coms close to the white/gray wire color you posted about, is a white/light blue wire, BUT it's on the wiring for a 93-94 Rangers AC circuit & you say yours is a 98.

It comes from the cabin IP fuse panel position 15, a 10 amp fuse & goes to the AC-Heater control assy, then to the under hood clutch cycling pressure switch, then to the wide open throttle cutout relay, then to the AC clutch feld coil, then through it to ground.

So check under hood & see if the same color wire is connected to the clutch cycling switch. If so, then carefully look on the back of the AC panel switch & see if you can determine where it was clipped from.

My manual for Ranger wiring from 95-on, doesn't show the white/light blue, or the white/grey color wires for the AC controls.
It shows that wire from the IP fuse panel to be w/p to the rear of the AC Heater Control Assy. Then P color to the under hood AC clutch cycling pressure swtch.

These later wiring colors aren't even close to the white/gray color you posted, so I'm not certain just what you have there.

It does sound like you don't have power from the cab AC switch, to actuate the AC clutch for some reason.

So check for power on the rear of the AC switch, with the engine running.

If you don't have power there, back up to the IP fuse panel & check across the AC fuse for power on both sides of it.

If you have power to the AC switch, check on the output side of it. If ok there, move under hood to the AC Clutch Cycling Pressure Switch & see if you have power to it. Then to the AC High Pressure Cutoff pressure switch, then to the WAC relay,then to the AC clutch field coil.

Some where between the IP fuse panel & the AC clutch field coil, you have an open circuit.

Let us know how it goes.

 

The shop manual shows a gray and yellow coming from the ip fuse panel to the heater/ac control switch. So if that is cut then there is no power to the heater/ac switch the pink goes to the pcm which controls the whole air conditioning system.
Should be Fuse number 10.

 

There is a white/pink wire that goes to the switch assembly. It comes from the I/P fuse #18, 15 amp. This feeds the low pressure cycling switch. It has 12v with ignition on. A test lamp will tell you as to voltage. If it has been cut, you should be able to find the other end.

There is another wire that is pink/white. It feeds the blower. Don't confuse the two. jd

 

According to the Shop manual for 1998 ranger fuse 18 is for the door locks.

 

My info comes from a POS Haynes manual. It shows the door locks fuse to be #5 in the underhood fuse panel, 20amps. I would trust the shop manual. You didn't give the fuse # for the A/C control switch. jd