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Resetting the PCM after Repairs are made

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Old 11-17-2013, 01:04 PM
makuloco2000
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Resetting the PCM after Repairs are made

Here is the definitive how to guide to clear all the old bad shifting and idle habits from the defective parts you have changed out. A simple battery disconnect will clear codes but not the adaptive shift and idle strategy. Many times the vehicle will exhibit the same concern even after replacing the part due to old "Learned Value". Take a moment to watch the video and you will then finish the repair job right!

 
  #2  
Old 11-18-2013, 08:35 AM
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That's good to know, thanks for posting!
 
  #3  
Old 11-25-2013, 12:32 PM
makuloco2000
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No problem, of course dual battery setups require both batteries be disconnected. It's fool proof any year any model that's why we stick with this procedure.
 
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Old 11-25-2013, 08:11 PM
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Good info to have. Thanks for taking the time to share.
 
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Old 11-25-2013, 09:49 PM
makuloco2000
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No problem!
 
  #6  
Old 11-26-2013, 08:19 AM
johndeerefarmer
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That works fine but using my SCT programmer and doing a KAM reset is easier and faster
 
  #7  
Old 11-26-2013, 10:00 AM
makuloco2000
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Whatever works best for you.
 
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Old 06-30-2014, 11:24 AM
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Would an alternate procedure be simply turning on the headlights once the battery cables are disconnected? Wouldn't that drain any leftover voltage remaining in the PCM, etc and accomplish the same thing? I would assume so, but just checking...
 
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Old 06-30-2014, 12:57 PM
makuloco2000
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Originally Posted by EBXLTF150 View Post
Would an alternate procedure be simply turning on the headlights once the battery cables are disconnected? Wouldn't that drain any leftover voltage remaining in the PCM, etc and accomplish the same thing? I would assume so, but just checking...
Years ago yes absolutely but nowadays all the head light switch or defrost switch or any other switch is simply sending a ground signal to the bcm then it is up to the bcm to turn on the relay and headlamps. That cannot happen if the bcm is not powered up so you flick the headlight switch on and you are doing nothing on any of the newer cars since the 90's.
 
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Old 06-30-2014, 01:00 PM
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Originally Posted by makuloco2000 View Post
Years ago yes absolutely but nowadays all the head light switch or defrost switch or any other switch is simply sending a ground signal to the bcm then it is up to the bcm to turn on the relay and headlamps. That cannot happen if the bcm is not powered up so you flick the headlight switch on and you are doing nothing on any of the newer cars since the 90's.
OK, understood.
 
  #11  
Old 10-11-2018, 10:36 PM
Robert Papa
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Sct?

Originally Posted by johndeerefarmer View Post
That works fine but using my SCT programmer and doing a KAM reset is easier and faster
I have an SCT X4. Where in there does it have to do Kam reset
 
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