code question

[frltsta11]

My display brought up code P1870-C. My list of codes doesn't have this one in it. Anyone know what it stands for?

 

[c4c5specialist]

HI there,
Something is wrong with the automatic transmission, since your overhaul.
1870 is for a transmission component slipping. This will cause a very harsh 1/2 shift, as line pressure is maximized.
Allthebest, c4c5