2004 Jeep Grand Cherokee...4.7

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#1
OK...I have another one plaguing me....It belongs to my daughter and son in law....It has a PO601....

SYMPTOM
P0601-PCM INTERNAL CONTROLLER FAILURE

POSSIBLE CAUSES


Powertrain control .......if I reset the code it comes right back..Doing a search on the internet it seems like this is a common failure in Jeeps...so am I correct in assuming he needs to replace the PCM?...Thanks....Jim
 

billr

wrench
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#2
"Common failure" makes me wonder about solder joints, bad due to board design or manufacturing process. Can you open it up and peek, or is it all potted?
 
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#3
I haven't pulled it out to look at it yet, Bill........She said the light was on and I pulled the code....reset it the other day and it came right back on...Jim
 
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#4
got to mention the pcm/vcm MIGHT be covered under 8yr warranty....
 
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#6
Well..I thought I should update this......She finally ordered another one...they had to have her VIN and mileage...but it came UPS Saturday and I put it in yesterday and the code is gone and it is running fine...thanks for all the help....Jim