PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > General Forums > Tech & Performance Forum

PT Cruiser Forum

Advertisements
Computer issue

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 20 Apr 2011, 04:53 pm
Fresh Cruiser
 
Join Date: Dec 2009
Posts: 19
Default Computer issue

I have a 2001 PT Cruiser with a check engine light on. I need to get a new york state inspection and I have been told by two shops that the computer is shot and needs to be replaced (thats the only way to get the light out).

I have also been told that I need to get the numbers off the computer,
locate a replacement and have someone program the computer?

Can someone please tell me where the computer is located and where I would find the numbers, so I can make some calls and try and locate another
from a junkyard.

Also, is it possible to fix the computer that I have (cost effective)?
Might it just need to be reprogramed?

The car seems to be running ok, but I need to get an inspection next month.
Any answers would be greatly appreciated! Thanks.
Reply With Quote
  #2 (permalink)  
Old 20 Apr 2011, 05:09 pm
Regular Cruiser
 
Join Date: Mar 2011
Posts: 164
Default Re: Computer issue

The check engine light is a device that tells you when the computer has detected somethings' amiss (it throws a code). Before I pony up and swap out a perfectly good cpu, I would go to the sticky "Error Codes" and follow the directions there. It could very well be you have a bad sensor somewhere and the computer is trying to get your attention, hence the CEL (check engine light).

alan
Reply With Quote
  #3 (permalink)  
Old 20 Apr 2011, 05:17 pm
Fresh Cruiser
 
Join Date: Dec 2009
Posts: 19
Default Re: Computer issue

Thanks, but whatever code it spits out, is saying that the computer is no good. I went to two mechanics (obviously I wanted a second opinion) because I know that this is going to be an expensive fix, all for a check engine light!

The light wont even shut off. In the past with other cars I have had sensor issues, etc.. The mechanics been able to knock out the light (temporarily, they would come back on over time if the faulty piece wasnt replaced. This car you can't even get the light to go out.

Last edited by hulk2; 20 Apr 2011 at 05:21 pm.
Reply With Quote
  #4 (permalink)  
Old 20 Apr 2011, 05:25 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,743
Default Re: Computer issue

Sure you can, at least you can try. Take the negative battery cable off for about 5 minutes. That clears the fault code and resets the computer. Try it.
Reply With Quote
  #5 (permalink)  
Old 20 Apr 2011, 05:50 pm
Fresh Cruiser
 
Join Date: Dec 2009
Posts: 19
Default Re: Computer issue

Thanks, but I had to replace the battery about a month ago, this lights been on for about 8 months now.
Reply With Quote
  #6 (permalink)  
Old 20 Apr 2011, 06:52 pm
Regular Cruiser
 
Join Date: Mar 2011
Posts: 164
Default Re: Computer issue

Hmm, sounds like the cpu might very well be gone. As to what works with what, that I don't know. I would imagine you have to go to the dealer so they can program it based on your VIN.

Just did a Google search for Pt Cruiser ECU and came up with this:

http://www.autocomputerexchange.com/...Cruiser/2001/1

You give them your VIN and they program it with latest updates. You return your old ECU as a core.

At least it is a start.

alan

Last edited by alanrw; 20 Apr 2011 at 06:58 pm.
Reply With Quote
  #7 (permalink)  
Old 20 Apr 2011, 06:54 pm
Fresh Cruiser
 
Join Date: Jan 2011
Location: Socal
Posts: 29
Default Re: Computer issue

The PCM is located on the firewall on the drivers side in the engine compartment. Your part number you need is on a white label on the pcm.

Im guessing you got a PCM failure code or no PCM response code in which you need to replace you PCM. There is just no way around it. No place I know will "fix" PCMs. Usually it is a core charge thing. You buy one and give them yours.

If you got an "Invalid Skim Key code" or something similar, it could be a programming issue. Stop by a dealer and get some diagnostic time run on it. If you need a PCM (most likely) it has to be done at a dealer anyways.
Reply With Quote
  #8 (permalink)  
Old 20 Apr 2011, 07:50 pm
Fresh Cruiser
 
Join Date: Dec 2009
Posts: 19
Default Re: Computer issue

alanrw this website looks great (almost to good to be true).
http://www.autocomputerexchange.com/...Cruiser/2001/1

Thanks alot will be looking into this!

This looks like a plug in module anyone know how or can direct me to instructions on how to replace
ECM Engine Control Module

Last edited by hulk2; 20 Apr 2011 at 07:53 pm. Reason: Additional info
Reply With Quote
  #9 (permalink)  
Old 20 Apr 2011, 09:32 pm
Regular Cruiser
 
Join Date: Mar 2011
Posts: 164
Default Re: Computer issue

Disconnect the battery, unplug the 2 harnesses into the ECU, remove the ECU. The harnesses have the red locking thingys on them. For some reason, Chrysler saw fit to place the locks inbetween the ECU and the firewall instead of on the opposite side where you can actually get to them. Funny, a lot of things on this car are engineered this way.......

alan
Reply With Quote
  #10 (permalink)  
Old 20 Apr 2011, 10:30 pm
Fresh Cruiser
 
Join Date: Dec 2009
Posts: 19
Default Re: Computer issue

Thanks alanrw. didn't look yet. Is the ECU mounted to the firewall, unplug the 2 harnesses, unbolt and thats it? According to autocomputer exchange website the latest software and updates are installed on there rebuilt ECU
just install and car should start.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
03 GT AC issue freakengine Tech & Performance Forum 5 04 Sep 2010 10:06 pm
HID issue CYCLONE_06 Tech & Performance Forum 0 16 Apr 2009 08:00 pm
02 PT issue jparksp Tech & Performance Forum 4 18 Feb 2009 12:11 am
Computer Issue ..pcm?? mjb457 Tech & Performance Forum 0 17 Aug 2007 12:32 pm
the oil issue zoned Tech & Performance Forum 3 17 Nov 2004 09:47 am


All times are GMT -5. The time now is 12:12 am.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors