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LG Ac kepps turn 'on'..eben after i switched off ,showing 'Co',I READ YOUR ANSWER TO CLICK ON AUTO CLEAN,BY DOING THAT THIS PROBLEM WILL NOT BE REPEATED?

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AC of my 2003, 2.7lt CRD, Jeep Grand Cherokee, has recently been re gassed, it cools ok initially but for 5 to 10 minutes only, error codes 22 and 52 indicated.


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

Dec 28, 2016 | Jeep Grand Cherokee Cars & Trucks

1 Answer

AC only blowes through defrost. Changed switch and still doesnt work what what should I check next?


didnt specify vehicle so answer will be a generic one --check the duct [blend,flap,diverter] door may be stuck sometimes debris finds its way into system and jams it -- actuator sticking or failed on 99 % of vehicles look under dash in center or towards passenger side the following link will show you what to look for
Auto Blend Door Yahoo Video Search Results

Jun 24, 2016 | AC Cars & Trucks

1 Answer

Auto Camry 97 cooling fan is not switching on automatically, the temp gauge shows normal temp. Also both AC and cooling fan works when AC is switched on?


If the temp gauge shows normal, you would not expect the fan to be on much. It is controlled by the coolant temp sensor. If the fan will not come on when the car gets really hot, it is possible this sensor has failed.

It is normal for both AC and cooling fans to be on when you turn on AC to cool setting.

Oct 27, 2013 | 1994 Toyota Camry

1 Answer

2004 Porsche Boxster S Fog Lights do not stay on When I pull the switch and turn the knob to the left one click and let go of the switch the Fog lights do not stay on but when I pull the switch and kepp...


It sounds to me like your switch is bad. I would order a new one and replace it. if that doesn't work you can usually return the switch. just be sure and check the return policy.

Sep 10, 2013 | Porsche Boxster Cars & Trucks

1 Answer

Ac cluch does not kick in


if you press the ac button, do you hear a faint "click" inside the vehicle? someplace next to the passenger area floor there is a relay for the ac. Turn the vehicle on and press the ac switch while you are near the glovebox area and see if you hear the "click" if you hear that, your ac compressor is probably dead. If you don't hear that click. it's possible that the ac relay is dead and that's usually cheap at the auto parts store. good luck!

Jul 03, 2012 | 1993 GMC Sierra

2 Answers

I currently have two problems: The first is a minor pain, but, the fan on the ac/heater only operates on the two high settings. I've heard that there is a solenoid on the firewall that controls this...


Hi,
the simplest way to clear the AC issue, is to visit your local auto parts store and they will show you an 'exploded' diagram of the AC system and it's components. If you speak nicely they may well show you the actual controller. for the fan speeds.

The other method is to visit your local library and check a Mitchell repair manual, You can see the circuit wiring for the AC speed control /mode switch.

It sounds as if the control switch for the drivers window has malfunctioned. They, because they are used so mjuch, are generally the first to give problems.

If you remove the window operating switch unit, (very carefully) and remove the plug in control wires. Check the switch if it is held together by 4 small tangs. If so it is possible to very carefully separate the unit, and clean the internal contact with a glass "emery" (I know, a contradiction in terms) board which women use to shape their nails. Being made of glass paper, it will not leave a residue as emery cloth does. Assemble the switch and plug the power plug into the switch. Power on and operate the window. If successful your window will now operate. Refit the switch unit in it's original position. If the switch fails to power the window, I am afraid that your next choice will be a salvage yard, an auto parts store, or a dealership.

Prior to doing the above. It may be possible that the passengers side window operating switch , will swap out with the drivers window unit. Some do,....and some don't! It would be your call as to whether you try it.

Good luck.

Jan 31, 2011 | 1999 Oldsmobile Alero

1 Answer

AC was weak so had it recharged. Everything was fine for the rest of the day. Next morning I started the car, turned on the AC, was putting junior into his carseat when the AC quit. I turned it off then...


read the owner manual to see how the auto works. try the defrost mode whcih is a fail safe mode and should always come on unless a major system issue.

Oct 15, 2010 | 1988 Jaguar XJ6

2 Answers

2002 Honda Civic A/C not working


high and low pressure swich try putting freon in it

Aug 12, 2009 | 2002 Honda Civic

1 Answer

1998 BMW 328i heater/AC blower is not running


You have clean the blower unit , may be its dirty then . and then check the blower resistor unit for malfunction.

Aug 04, 2009 | BMW 328 Cars & Trucks

1 Answer

Espace 2004 2.2 privilege auto outside temperature reading


disconnect sensor then a/c will read it as default or not read it so ac will work more manual than auto

Jul 25, 2008 | 2003 Renault 181

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