All,
I have a new to me 2006 wranlger unlimited with 141k. Drove it 600 miles home with no problems. Now the auto trans keeps going into limp mode but still works well otherwise. Codes p0700 and p1776.
My trusted, but not a jeep expert, mechanic says scanner shows trans temp jumps from 120 to 800 to 1200 degrees. He says I need a new pcm.
Based on the ambient temp and trip duration before it throws codes, I suspect it is a temperature or percieved temperature problem.
Temp gauge is steady at 210.
Flushed trans and disconnected battery, no help.
Has anyone had this problem?
Any help is greatly appreciated.
Jim
I have a new to me 2006 wranlger unlimited with 141k. Drove it 600 miles home with no problems. Now the auto trans keeps going into limp mode but still works well otherwise. Codes p0700 and p1776.
My trusted, but not a jeep expert, mechanic says scanner shows trans temp jumps from 120 to 800 to 1200 degrees. He says I need a new pcm.
Based on the ambient temp and trip duration before it throws codes, I suspect it is a temperature or percieved temperature problem.
Temp gauge is steady at 210.
Flushed trans and disconnected battery, no help.
Has anyone had this problem?
Any help is greatly appreciated.
Jim