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Power Strokes
6.4 Tech
Cruise Control Problem
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[QUOTE="Wildman, post: 1290329, member: 18533"] This is a notorious problem on 6.4 trucks. The problem is there is multiple inputs to the PCM that allow the cruise control to operate, and a voltage variance on any of them can cause the CC to quite working and the PCM to set DTC P0703. Are you skilled with diagnostics? Do you have and know how to use a DVOM? If so, I can assist you with diagnostics. If not, bring it to the dealer, tell them what you've done, and ask them to contact the Technical Assistance Center (Hotline) for support. The testing in the Workshop Manual will not lead them to anything except for a higher bill for you. [/QUOTE]
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