Solved

Car computer reset

Posted on 2016-11-15
4
137 Views
Last Modified: 2016-11-18
I just had my vehicle cylinder head done today and I took my vehicle down to emission testing and they told me I had to do some research about how to reset my computer because my computer is not hooking up to their computer. What exactly do I need to do to reset the computer on my vehicle. He told me to google it but I don't know the specifics to google. I am from Nashville, Tennessee. My vehicle is 2000 Ford Expedition 5.4 4WD.
0
Comment
Question by:Ann K
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 17

Accepted Solution

by:
Tiras25 earned 250 total points
ID: 41888917
Normally you do it with ODB-II scanner or other proprietary scanners.  

Try disconnecting a battery for 10-20 min.  Negative cable.   Connect back.  Then you may need to drive around for another 30min to an hour to have the computer reset.
1
 
LVL 19

Assisted Solution

by:Mal Osborne
Mal Osborne earned 125 total points
ID: 41889004
Does your cigarette lighter work?

Yes, that IS relevant. If the cigarette lighter (or at least the socket) is dead, you probably have a blown fuse, that will cause the problem you are experiencing.
1
 

Assisted Solution

by:Anon Whatnow
Anon Whatnow earned 125 total points
ID: 41889087
You need to disconnect the NEGATIVE lead from the battery and separate the terminated end so it does not make contact again with the battery, use a wire to connect to the POSITIVE lead which will remain connected to the battery and connect that wire to the NEGATIVE lead cable that is disconnected from the battery.  LEAVE IT FOR 5 to 10 minutes to make sure all the capacitors discharge totally resetting the PCM.

After 10 minutes replace the NEG cable to the battery, roll the keys forward just to power up the system ( do not start the engine yet ) and give it about 1 minute to boot. make sure ac radio etc any draw is off.

Now start the engine and let it Idle for 10 minutes,  Then you have to drive up a stretch of road you can go through all gears, about 2 times, there and back basically.
1

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Stuck in voice control mode on your Amazon Firestick?  Here is how to turn it off!!!
This story has been written with permission from the scammed victim, a valued client of mine – identity protected by request.
Saved searches can save you time by quickly referencing commonly searched terms on any topic. Whether you are looking for questions you can answer or hoping to learn about a specific issue, a saved search can help you get the most out of your time o…
Where to go on the main page to find the job listings. How to apply to a job that you are interested in from the list that is featured on our Careers page.

718 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question