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Can I fix this P0601 code?


chade808
08-08-2005, 01:46 AM
First...what in the world does it mean? I know its fault name is internal self test, but what does it pertain to? And can I fix this or is this only something a dealership can fix?
jackzzzz
02-23-2006, 01:30 PM
First...what in the world does it mean? I know its fault name is internal self test, but what does it pertain to? And can I fix this or is this only something a dealership can fix?

I think it means that the internal PCM FLASH memory where the PCM stores its parameters (DTCs, etc) is bad and corrupts the data. It seems to be a hardware error and so it probably cannot be fixed by the PCM software download.
Stevo2
02-25-2006, 05:10 PM
Diagnostics say replace PCM.
jackzzzz
02-25-2006, 08:21 PM
however, I just reloaded the newest software into the old PCM, and the P0601 code seemed to have gone away. This is in a 2001 ram-1500 p/u with a 3.9L engine.

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