LBZ: BT lock up box throwing 0700 code (limp mode)

[diesel53]

Anyone had a lock box throw a code and limp mode if you start the truck before the check engine light comes on? Any fixes for that?

 

[N2BRK]

you need to get a better code reader; P0700 is just telling you that there are other tranny codes. FWIW, you can have issues with the box if you don't have excellent connections.

 

[diesel53]

you need to get a better code reader; P0700 is just telling you that there are other tranny codes. FWIW, you can have issues with the box if you don't have excellent connections.

Ya but it's only if I start the truck before the check engine light goes out. I know it's the box, it works correctly other than the start issue

 

[TheBac]

Trans code = Trans Talk

Id get a TCM code reader on it first. Code should still be stored, shouldnt it?

 

[diesel53]

Trans code = Trans Talk

Id get a TCM code reader on it first. Code should still be stored, shouldnt it?

I clear it, but I can make it happen again every time. I'll see what the codes are