Have a 95 grand jeep chrokee limited 5.2 liter pcm will not ingauge AC clutch relay

you may still need more freon ---a line/seal has failed --moisture in lines etc https://www.autozone.com/diy/climate-control/diagnosing-car-ac-problems https://cartreatments.com/car-ac-not-blowing-cold-air/

its not one fuse, sorry, not at all
and you failed to scan the PCM, why skip this? it tells you whats UP.
only 2 things cause that (electronics logic)
1: The hi/low pressure switch tripped,
2: or the AMP the AC logic module (has bad inputs)
is this is USA car, ? seems not. but is it?
as non usa cars are different.
ill now answer, as if it was....
our cars have 2 HVAC systems (chapter 24 in Serv. manual.)
manual or AZC, no photos of your controls, so will toss coin on AZC auto zone controls (see Display there with graphics and temp, mine shows, 74F like the books shows. and 4 knobs not 3.?
The AXC system has operator self diagnostic mode,
need that, its in the manual, see last link below,a free book.

fuse JB20 run this controller. but only on gas engines.
as does, JB F21 and PDC fuse 21. (you 2 fuse both 21)
JB is cab box, PDC is hood fuse box next to clutch RELAY.
That logic resides, in the AZC and the PCM
the PCM runs the clutch relay directly
the diesel uses different wiring and fuses.
PDC Fuse 16 and F21 are diesel , fuse for the clutch.
i suspect you failed to check all fuses.
lets do the flow of logic, and you will see.
you have the A/C turn on via the AZC controls.
it sees its (guess) its too hot in the cab
the AZC then sends a MESSAGE down the network.
the PCM sees that and the BCM,
the PCM if the engine is not overheated and the hi/low switch is not tripped, (called by jeep pressure transducer A/C)
then the PCM energizes the clutch relay.
The BCM helps with directing traffic. (bcm prevent evap freeze up etc....)

so there are 3 things you can do.
1: this time check all fuses, not just the one, (RTM read the manual for our car in your country)
2: scan the PCM for A/C errors. (posted now over 1000 times)
3: run the AZC if opted day 1, self test, and the 50 errors possible there. chapter 24.

click WJ jeep, here, read chapter 24
then 8w wiring chapter on A/c
and keep in mind there are systems, manual and AZC
and they are NOT the same.

all free, USA only this is a USA forum not say Europe.

http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

Well ,then the PCM is not fine , send it back . Go to a salvage yard an get a used one . I had problems with PCM/ECM'S from them ! I have had better luck with used one's from salvage yard .

Maybe I can give a little help. Do you have the 4.0 liter straight six engine? This should apply as well if you have the V8 engine.

:...no check engine light...:With key on, does the light turn on? If not, it may not be getting power. Have to check that first, check all fuses in the under hood relay/fuse block. The check engine light should turn on with key in on position, just as an alert that the PCM is powered, and ready to work.

"...no electric to coil..." With key on, the dark green/black wire to the coil should have battery voltage. In that fuse/relay block will be a relay called an Automatic Shut Down relay (ASD relay). When the PCM turns this relay on, power is sent to the ignition coil on the green/black wire. The power feed for the ASD relay is fuse 2, a 20 amp fuse in the Power Distribution Center -the fuse/relay block under the hood.

So you have a couple of things to check: Make sure the PCM is powered. If it is, hold your finger lightly on the ASD relay while someone turns the key to on. You should feel it click on. If it does, but no power at the coil, check if fuse 2 is sending power to the relay, and check the green/black wire from relay to coil. If no relay action, possibly a bad relay, or the PCM is not turning the relay on.
Good luck. Let me know what you find.

there cud be a module-those cars are complex--send issue to [email protected] a master on any make and model

Are you check your previoud questions: check_engine_error

Keep us updated.

Hi, pull out the ASD relay and use a 12 volt test light to interrogate the relay socket. Hook your test light clip to ground and probe the terminals of the relay socket. There should be one hot terminal when the key is off and 2 hot terminals when the key is on. One of these is the power from fuse 6 and the other is from the ignition switch. If these are good, suspect the PCM is not turning on the ASD relay or the relay is bad. You can check for the ground signal from the PCM by moving your test light clip to battery positive and probing the other terminals in the relay socket. Again, one terminal should light the light when the key is off and both should light the light with the key on. If not, the PCM is not turning on the relay, and you should suspect your anti-theft system. Please let me know if you have questions, and thanks for using FixYa.

There should be a 12 volt wire at the compreser pump that engages the electric clutch, using a test light see if there is power there when AC is turned on. If you do not have power there check for fuses, if there is power there its low on AC gas.

IF YOU PULL OUT CAM SENSOR YOU HAVE TO PUT A TOOTH PICK IN THE TWO HOLES ON THE TOP AND THEN PUT IT BACK IN AND FACE IT TO THE BACK OF THE ENGINE.KING OF 4.0

crank or camshaft sensor will cause this, a bad crank sensor will cause it not to start or start hard. it controls timing and sends info to pcm for proper fuel mixture and spark at the right time.