P0872 P0847 P0706 Help. 2009 Stock trans trans go.

[heathgu]

Hi everyone have a these fault codes come up.

And info on what to replace, only happened this morning when to accelerate around a truck.

Regards Heath

 

[andy-stevenson]

Stock allison will never last behind a built motor...

 

[heathgu]

The truck with the fault is stock sorry.

 

[Mike L.]

P0706 indicates that the ECM allowed an engine start in drive or reverse. The other 2 are elctrical codes. I would try another TCM for starters as they are known for going bad, And if that doesn't fix it, start looking at wire connections.

 

[heathgu]

Thanks mike,

I will try another TCM now.