My 05,F350CC LB, keeps comming up with these codes on my edge platinun box,P-1378,U0155,u0100, Any body have a clue what it would be?Truck seems to run ok and always starts,fuel milage around 15 empty

 

p1378---ficm supply voltage circuit low.........u0155---lost communication with instrument cluster.........u0100---lost communication with ecm/pcma........ Looks like all of them are caused by your controller. Still think we cant see them?

 

So what your saying is the edge is setting the codes?It's been on for three months but the codes just started recently,I had the insturment cluster out is it possible that I have a bad connection there throwing the codes?

 

U0155, for instrument cluster--------the others, will probably be from the controller.

 

My 05 350CC LB also sets the same exact codes with an edge platinum. Runs fine though. The turbo cool down timer may cause some of the problems. I believe the platinum keeps the PCM powered up when the key is off until the cool down EGT is reached. PCM probably thinks something is wrong if engine is running with the key off.

 

Yeah I feel sure thats where the codes are generated,I just clear them once in a while.