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RESET the PCM?

Tiny
TJLAWRY
  • MEMBER
  • 8 POSTS
Thanks for the reply - and I did originally think you just had zero sense of humor! In the meantime, where exactly do I locate the PCM on the 2002 Ford Taurus? Local junkyard has one 2002 taurus I can get the brain out of for $40 - but I have to know where it is AND I need the part number off my existing brain ( by the way, my wife would love to get the part # for MY brain - she swears I have missed a few recalls). I have a neighbor who works on cars, so I may ask him for assistance in gettign the part out at local junkyard (1 mile from the house).

THANKS
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
SANDYLOUWHOO
  • MEMBER
  • 8 POSTS
Oh, thank you so much! I really appreciate it!
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hay:
I know I've missed several recalls. Try teaching high school students. Actually, I really enjoy it. Today they covered my truck with posters (april fools day). I couldn't get mad. They put a lot of time into it and actually they were all nice comments. I still work in a district filled with great students.

As far as the PCM location, according to Mitchel online it is under the hood on the right side of the firewall. If you don't find it, let me know. The plug going to it will have several pins. Here is a picture of the terminal connector so you can see how many I am refering to.


https://www.2carpros.com/forum/automotive_pictures/249084_pcm_1.jpg



Here is a picture from Ford of the PCM mounted. NOTE: When you replace it, make sure the battery is disconnected first. Also, there is a relearn process with the new one.


https://www.2carpros.com/forum/automotive_pictures/249084_pcmm_1.jpg



Let me know what you find or if you have other questions. I have to run to repair my son's motorcycle, so I'll be back in about an hour.
Joe
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
NO problem
just let me know if you need any thing else
PS. Removing and replacing it
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
TJLAWRY
  • MEMBER
  • 8 POSTS
WOW - this is wonderful. Thank you so much - and of course, one last question - junkyard wants me to bring the part number with me - I do nto want to unhook the current semi-functional PCM in my Taurus to get it. Any idea what the part number is?

I'll let you know Monday if I had success.

THANKS again so much.
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
DFISHE10
  • MEMBER
  • 1 POST
  • 1999 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 250,000 MILES
How do you reset the computer on a 99 ford taurus? Someone told me to disconnect the negative terminal and touch it to the positive terminal for 10 seconds, let it sit for 15 minutes and then get in and start it and put it in drive and hold my foot on the brake for 10 minutes and it should reset. Is that correct?
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
SANDYLOUWHOO
  • MEMBER
  • 8 POSTS
Ok. I replaced the blend door actuator. And it worked - the noise stopped, and the air changed temp, etc. Then it started blowing only hot air, no matter what setting I had it on. I unplugged the battery, and added coolant. And it worked again. Now, it's back to only blowing hot air. The coolant is smack full, I couldn't add any more if my life depended on it. Any suggestions?
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there, Basic strategy re learn can be normally achieved by driving the car about 10 miles in some cases a little further, other re programing must be done with the appropriate service tool.

Mark (mhpautos)
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-1
Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
I wish I could tell you. The number could be one of many. The PCM used is based on so many different factors, options, engine, trans. The only way to be sure is to remove it. I wish I had a better answer, but that is all you can do to be sure.

You have a great Easter, and I look forward to hearing from you on Monday.

Joe
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
ENTERING SELF-DIAGNOSTICS
Ensure in-car temperature is 40-90 °F (4-32 °C) as false in-car temperature sensor DTCs will be displayed. Simultaneously depress OFF and FLOOR buttons, then press AUTO button within 2 seconds. The display will show a dashed line in center of Integrated Control Panel (ICP) display window for up to 30 seconds while self-test is running. Record all DTCs displayed.
If DTCs are displayed, perform test indicated. If no DTCs are displayed, diagnose by symptom.
Self-diagnostics are complete when 888 is displayed in center of ICP display window. Self-diagnostics can be initiated at any time with the resulting DTCs being displayed. Normal system operation is stopped when system is in self-diagnostic mode.
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Hello,

Do Not try Resetting Computer that way, could cause Voltage Spike and Fry your Computer.

.
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
TJLAWRY
  • MEMBER
  • 8 POSTS
So, if I take out the current one to get the part number, will I have to have it (the old one) go thru a relearn process when I put the old one in?

I assume I have to take it to the dealer for the relearn process to occur. Oh boy, another assumption.

THANKS AGAIN and Have a great Easter to you and your family
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
SANDYLOUWHOO
  • MEMBER
  • 8 POSTS
OK, I did the self diagnostics tests, and the codes being displayed are 025 and 051.
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
You may be able to get it out without disconnecting the wiring harness. If that is the case, then you won't have to go through the relearn. As far as the relearn process, if we get to that point, I can walk you through it. You can do it yourself. A dealer would most likely charge you a hundred dollars for nothing.
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Sunload Temperature Sensor Open
Blend Door Failure
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
TJLAWRY
  • MEMBER
  • 8 POSTS
Would you please go ahead and send me the relearn instructions? It is not coming out without disconnection as we saw last night.

Additional donation coming to you and the company for the wonderful help. It would be awesome if I can pull this off and "fix it" myself. Heck, my wife may even decide to keep this old model around for 20 more years instead of trading me in for a new younger sleek model :)

Thanks again
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
According to mitchel online, I think I have some good news for you. Based on what I read, if you are replacing the PCM with a direct replacement part, it appears nothing needs done unless you have added aftermarket parts / components to the car. The only time (according to mitchel) it needs to be flashed (relearn) is when you replace it with a new PCM. At that point you would need to download information from the old one to the new one via a scan tool.

Based on everything I read, it appears it should be plug and play (so to say).

Just remember to make sure the battery is disconnected while working on it. Don't hook the battery up before replacement is complete.

Let me know if it works. If not, I have a few friends that work at a local Ford dealer. They'll let me know if there is something different we need to do.

Joe
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
JENJENS12022
  • MEMBER
  • 1 POST
  • 1997 FORD TAURUS
Computer problem
1997 Ford Taurus Two Wheel Drive Automatic

I just installed a new pcm, do I need to do any special programing/calibrating for it to work?
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Mitchell's On Demand didn't specify programming for the new PCM and neither did the website for the company that I work for. But to be sure, you can call your local Ford dealership and ask the service department for clarification.
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)
Tiny
POWERMITE58
  • MEMBER
  • 1 POST
  • 1997 FORD TAURUS
Computer problem
1997 Ford Taurus 6 cyl Front Wheel Drive Automatic 87k miles

how do you reset the computer
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Sunday, September 29th, 2019 AT 9:45 AM (Merged)

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