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  #13  
Old 03-26-2012, 07:34 AM
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Re: Is there a way to reset the PCM .

You are right, in that a couple of minutes is not enough to reset it; when I am doing work on it, I discopnnect the neg, for at least 20 minutes or so. Just remember, You only remove the negative first, then the positive. You always install the positive first, then the negative. I am sure you have seen spark when removing the positive., correct ? If there is any gas leakage from around the battery, that is when it is extremely dangerous. Any signs of the green oxidation around the terminals is indicative of such gas leakage.
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Old 03-27-2012, 03:46 AM
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Re: Is there a way to reset the PCM .

Strange how the procedure is published so much then??

https://secure.marumoto.us/motowiki/...Jeep+Reference
http://wiki.answers.com/Q/How_to_reset_your_ecm
http://www.challengerforumz.com/showthread.php?t=64159
http://www.jeepforum.com/forum/f96/h...et-pcm-566770/

Many others too.
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Old 03-27-2012, 07:48 AM
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Re: Is there a way to reset the PCM .

I wont waste the time clicking on your links ar argiung the point any further. Just ask any ASE shop why you do not remove the positive first, or connect the postive last. My friend who has burns on his face and arms and ringing in his ears from an exploding battery will never do it again either.
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  #16  
Old 10-11-2013, 09:23 PM
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Re: Is there a way to reset the PCM .

Quote:
Originally Posted by Gojeep View Post
This is the way I have always done it.
Disconnect the POSITIVE battery Terminal and touch it to ground for 30 seconds. (This is to discharge the PCM capacitors, which maintain the Adaptive Memory.
Reconnect the Battery Cable
Turn Ignition Switch to the “On” position but DO NOT start the engine
Turn Headlight “On”
Turn Headlights “Off”
Turn Ignition Key “Off”

When you start the engine it will be running off a set of pre-programmed tables that come with the PCM from the factory. When you get the engine up to operating temperature, the PCM will start to collect data for the “Adaptive Memory”. The PCM will collect data for Adaptive Memory for the first 50 Warm-up Cycles.
will this work for an 05' 4.7? .
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Old 10-12-2013, 05:25 AM
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Re: Is there a way to reset the PCM .

Quote:
Originally Posted by Kevman View Post
will this work for an 05' 4.7? .
Should work for any PCM/ECU
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