Jeep jk ac compressor not engaging

anyone know where the A/C compressor relay or fuse is? my wife had walmart install a new battery at which time they blew the radio fuse. it wasnt till the next day i noticed the AC compressor isnt coming on. everything else seems to be fine. anyone know what can go wrong to fix this issue with the compressor? or can anyone tell me where to look for the fuse? Walmart is no help and has no clue whats going on.

the orange light comes on the dash when you press the button but the compressor never kicks on.

There is no fuse or relay for the compressor clutch. Power for the compressor clutch comes from one of the TIPM circuit boards, through connector C1, pin 50.
However, the A/C control panel, among other things, gets power from fuse M34. That may be related.

Check for power at the connector on the compressor clutch.

Do you know what they did that would have blown the radio fuse?

There is no fuse or relay for the compressor clutch. Power for the compressor clutch comes from one of the TIPM circuit boards, through connector C1, pin 50.
However, the A/C control panel, among other things, gets power from fuse M34. That may be related.

Check for power at the connector on the compressor clutch.

Do you know what they did that would have blown the radio fuse?

This is good advice. A/C signal starts as a multiplex voltage (2010 or earlier) sent to the CAB module (instrument panel) then broadcast on the bus and picked up by the PCM, filtered then a ground command sent to the TIPM on blue/org wire in connector 3 of PCM.

Electronics in the TIPM take over and again filter the signal for codes etc.

Make sure cooling fans work, check 60 amp cooling fan fuse (and all other fuses) in TIPM. Clear codes, disconnect battery and test again. If possible scan CAB, TIPM and PCM for codes.

Unplug 3 wire a/c pressure sensor near compressor and fan should come on high.

It goes on but hopefully it's something simple.

you guys lost me.. your technical ability far exceeds the average Joe. I know how to check the regular fuses but not the 60 amp and the big fuses. Not sure what Walmart did to blow the fuse, possible put the neg on the pos, its my wife Jeep and she had to go to Walmart due to being stranded while i was away.

Jeep is in NEW condition as it has 24,000 miles garage kept.

Check and see if you can get the clutch to engage with direct current. My guess is your TIPM is fried, ask me how I know lol.

ok, how you know,, i take it you fried yours? ouch. how much $ is that repair / replace?

how did you fry it?

i dont know where to check unless i skin back the wires and check just before the wires enter the compressor

i am getting P 0513 on the code using the key on/off

i am getting P 0513 on the code using the key on/off

I don't think a skim code will shut down a/c.

Go to connector 3 of your PCM(third connector in from driver fender). Pull dust cover off and using a wire tap or backprobe (sharpened paper clip) connect to the blu/org wire in cavity 11 and ground it while running.

If the compressor turns on the TIPM, fuses, etc are ok. Next check the R134 freon charge, if it is low the a/c will not engauge. Try and get a scanner on it and pull codes for the TIPM and CAB modules if possible.

ok, today the code is gone and it says done... i have 13 volts going to the plug just before the compressor. i stripped back a little bit of wire AFTER the plug and bypassed the plug and still zero volts.

i have to image this could be the low freon issue. is that normal for a garage kept jeep wrangler , i purchased brand new, with 25k miles to be low on freon?

thanks again in advance for everyones help.

tried to take the dust cover off but cant figure it out, broke the red hold clip so i kinda give up on that one. the fact there is 12v just before the compressor tells me it must be the freon.

The coil on the AC compressor shorts and fries the TIPM. You're looking at b/w 8 - 9 hundered dollars to replace everything.

ok, heres an update. the compressor is out. went to the jeep dealer today. dealer says the seals dried out and are gone. this 2008 JK has 25k miles, garage kept, beautiful shape. you could eat off the engine. estimate $580 plus tax for new compressor. not sure about rebuilt ones or doing it myself then having someone charge it.... aaauuuggghhh

ok, heres an update. the compressor is out. went to the jeep dealer today. dealer says the seals dried out and are gone. this 2008 JK has 25k miles, garage kept, beautiful shape. you could eat off the engine. estimate $580 plus tax for new compressor. not sure about rebuilt ones or doing it myself then having someone charge it.... aaauuuggghhh

I have found the JK compressor reliable. The high pressure sensor or o-rings on the firewall connector are known to leak.

If you trust your dealer or there are visual signs of leakage on the compressor replace it. If not you may have the system charged and have dye added.

The dye glows green under a florescent light. If it is a major leak you will not need a light and you may see oil around the leak point.

the dealer said they attempted to charge it but it was coming out as fast as they were putting it in so he was sure it was the seals. i trust this delaer, they have fixed as good will things out of warranty including give me a rental while they troubleshot the AC.

also, the price for a rebuilt one is running around 300-400 and i dont know the cost of a mechanic to replace and freon charge it. at those prices i will probably be getting close to the $500 dealer price.

i am going to call Jeep this week and see if they will help. the dealer said they submitted it for warranty request but it was denied.

Ac

Ok I fried something

In a rush I jumped my jeep off wrong. I've been jumping vehicles off for more than 35 years cannot believe I did this. AC doesn't cool. What to do now????

Hi, I have the same problem, the compressor sometimes turns on for 30 seconds and then switches off, the gas is full, the climate control unit in the passenger compartment has already been replaced.