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Hey guys, I bought an 08 ram 1500 5.7 , 26000 miles about 4 weeks ago and no problems till today. While accelerating moderatly all the dash lights, speedo/tach, radio/fan would flash on and off till I hit the brakes. With the key on/off 3 times flashed a po884 TCM power issue. Anybody experience the same issue? I did install a new radio with the 22 pin harness adapter 1 week ago but the radio plays fine. The radio has bluetooth ability and the truck has ON-Star system, Both times my cell phone was in a tray under the radio. Is it possible the cell phone frequency had anything to do with it? Normaly it is in my pocket...Thanks Matt
 

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Creepy Ass Cracka
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5,801 Posts
That code is set when the TCM looses power. From your description, it sounds like the truck is intermittently loosing power or ground. If its when you're accelerating hard, check the battery cables and grounds. Also make sure that you don't have an ignition switch problem from a heavy keychain pulling back when you accelerate.
 
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