I own a 2005 c/c s/b 4x4, duramax. The truck is stock, no mods besides a leveling kit. I have owned it for 2 years, with no problems till now. The truck has about 58k miles. While driving the check engine light came on, i was on my way out of town so i couldn't run my code reader. The next day , the light went out so i thought it was no big deal. Well it came back on, this time i was able to scan the code and it came up as p0601. I cleared the code, but later in the day it coded again. Any info i have found on the net does not sound promising. Wondering if anyone has dealt with this before, or if you know of a solution to the problem? Thanks in advance.

Code: P0601
Modules: PCM
Description: Control Module Read Only Memory (ROM)