Question about Jeep 2004 Liberty Limited Edition

1 Answer

Will jeep start if pcm is blown

I need to know what problems will be evident if the pcm has blown

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 15,557 Answers

No, but blown PCM's are rare. You need to check a lot of sensors before you decide to replace the PCM.

Posted on Apr 14, 2014

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Jeep was running fine , everything perfect, just had a oil pressure sending unit go bad, so bought one at autozone and put new one in.. While doing this took off harness grounds,now jeep won't start??


well step one was, what
remove battery neg lug,
did you, if not you blew some fuses.

wont crank , or cranks and not start.
no the PCM is not fried. Id, bet. long as you didnt hot wire things.
check your work, put it all back as you found it.
then check fuses
then scan it. key on see if it will scan,.
then key on see if dash glow, all those warning lamps (self test) come on now. then make sure CEL lamp glows, it must
or the PCM is of OFFLINE< no power, no ground or fuel blown to it.

those are the first steps to take.

Oct 25, 2016 | Jeep Cars & Trucks

2 Answers

I was driving my 1998 jeep wrangler yesterday when the check gauges light came on I saw that my voltage gauge was pegged on the over voltage side I pulled over and it died. I had it towed home and tod


Hi Danny, I'm Al the owner of Big A's Auto Repair
Danny, it's possible the over charging my have blown some fuses. Check all the fuses and replace the ones if any blew. NOTE: If the problem you having is the engine will not turn over then make sure the overcharging did not melt the starter or damage the battery. For further assistance go to my website. Have an awesome day Danny.
Auto Repair

Feb 01, 2015 | 1998 Jeep Wrangler

2 Answers

Need help troubleshooting 89 omni?


You need a scanner. Does the PCM see the engine cranking?
Are the injectors firing (evidence PCM see's engine cranking)?
Does the system show it is firing? This is things you need to know to diagnosis a a no start/hard starting engine.
I've seen Dodges not seeing engine crank due to bad crank sensors. Usually jeeps.
Good luck and ask more if needed?

Jan 30, 2015 | 1989 Dodge Omni

1 Answer

2001 Jeep Grand Cherokee Ltd 4.0 starts and cuts out. Sentry key light up no gauges. SCAN TOOL DEAD, PCI- BUSS DEAD OR NEAR DEAD.


delete the whole post. op
no scan tool brand stated, nor model
it MUST be J1850 VPW certified(jeep PCI bus)
and type, my scan tool is dead,and car runs like crud. (tells all we need to know)
OK BIG PROBLEMS
all easy to discover , with a voltmeter,
ever heard of that?
error1, park lockout is law,,and needs working brake lamps
to shift out of park .. (usa cars, on a usa forum)
seem like the fuse to the cluster are bad.
are you blowing lots of fuse/?
battery pull and you forget that PCM needs to relearn idle.
so.... that was normal
before working on any complex car, read the service manual first
not make blunders.? there some that can be tragic.
your dealer SUX,!
if comm fail,i it can be fuse on pin 16 of DLC connector (scan port)is blown
if pin 16 is hot,12vdc
then the comm buss is shorted
a real TECh unplugs all comm buss,(CCD,PCI) modules 1 by 1
to find how WHO is shorting the buss out.

in real computer this is well known,many shops never took the class on networking,find a real ASE shop
that knows jeeps, and networks
his $800 blind guess, sux

IF you scan tool plugs in and works
you'd have seen if he Immbolizer as tripping.
with codes just for it, bad key ,bad skim module
he ASD relays drops and engine is stalled on purpose buy the PCM

the ASD drops for 7 reason or more (ONE IS CMP OTHER IS CKP AND MORE) NO NEED TO GUESS.
and the PCM ALWAYS TELLS YOU WHY!

READ THIS
http://jeepdied.com/ASD.html

POINT 2,
IF THE NETWORK IS FAILING!!!! PCI?
SO WILL THE CLUSTER!!!!
THE CLUSTER IS DATA DISPLAY USING DATA.
ITS NOT A OLD SKOOL HAND WIRED, DISPLAY,
NOW. ITS A COMPUTER BASED DISPLAY
NOT UNLIKE A DESK TOP COMPUTER USES.

THIS JEEP USES A PCI BUSS NETWORK.

THE PCI BUSS ON CAR, TALKS TO 22 MODULES
IN SAID CAR, IVE ONE SHORTS.ALL GO NUTS.
JUST LIKE AN OVER TURN GAS TRUCK CROSSWAYS
ON A FREEWAY, SAME THING,

COVERED IN CHAPTER 8W,PAGE 18
SEE IT?



learn to use a scan tool
and avoid Dodge man like plugue.... find
ase shop
or real jeep shop.

the DLC needs 12vdc on pin 16 this is ALWAYS FIRST.


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

SHORTER POST NEXT
---------------------------------------------------------------------------------------
SCAN TOOL DEAD
1`:12vdc power dead on pin 16, dlc, fuse blown for sure.
2:comm still fail, one of 22 modules, shorting PCI network
short and dead accurate.
3: USING THE WRONG SCAN TOOL, !!!!!(IDIOTT TECH)
here is my 2008 can-bus
your page looks just like this in YOUR Serv.man.
but is PIC, and is diagnosed same way.
http://www.jeepdied.com/pdf%20and%20more/8e-39wk.JPG
in my case 29 modules to short. see???????????

06f48b24-6a95-4431-a261-99e24c95da30.jpg

Feb 27, 2017 | 2001 Jeep Grand Cherokee

1 Answer

My jeep just started shutting off while im driving, do you know what the problem is?


The next time it won.t start tap on the PCM and if it starts then replace the PCM.There has been problems with the PCM.s on these jeeps.

Oct 18, 2012 | 1997 Jeep Grand Cherokee

1 Answer

Truck is stranded with a faulty PCM


If your light has not come on, it means one of two things. 1) you have blown a fuse for the PCM, and need to replace it. 2) you drove your vehicle around with a bad PCM, and it finally quit all together. If it is not the fuse, you are pretty much stuck. Why would you drive it with a bad PCM?

Jul 11, 2009 | 1994 Jeep Grand Cherokee

1 Answer

I have no spark and no fuel in my 1996 jeep grand cherokee 4.0


YOUR PCM IS BLOWN! happend to me as my Rear o2 sensore got caught up in my driveshaft. Shorted my pcm. Your PCM is located, if looking under the hood, very back, on the left. By your overflow. Trust me.... :(

Apr 29, 2009 | 1996 Jeep Grand Cherokee

5 Answers

Will not start


Try replacing spark plugs and battery, check the distributor cap.

Jul 29, 2008 | 1997 Jeep Cherokee Country

Not finding what you are looking for?
Jeep 2004 Liberty Limited Edition Logo

Related Topics:

100 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4848 Answers

Tom Chichester

Level 3 Expert

34151 Answers

yadayada
yadayada

Level 3 Expert

75807 Answers

Are you a Jeep Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...