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Power Strokes
6.4 Tech
Battery Light on and codes.
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[QUOTE="ACFarmer, post: 1264944, member: 538"] My 09 just started kicking on the battery light. Codes I have are P0620, P215A, U0155, P0578 and U3F06. Ive had my ABS light on for a while and I figure some of those codes are for that too. I checked my voltage, was 12.8 with truck off, started truck and it jumped to 13.6 for about a minute and then it jumped all the way up to 16. I'm guessing the alternators are internally regulated. So is the alternator going bad or am I looking at a computer issue that causing it to over-charge? Anybody else had this issue? Need to figure it out as I need the truck to pull a trailer in a couple days. Kind of weird how it charged correctly for about a minute before pegging it out. [/QUOTE]
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Battery Light on and codes.
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