We rebuilt the transmission a 2006 Grand Caravan, 3.8 L engine, A604 transmission: new seals, frictions, steels, torque converter, filter, ATF+4 fluid. Now we get the P0841 code as the van is in limp mode. What is the process of diagnosing this so that I am not just arbitraily replacing parts.
From the posts I have read there seems to be a lot of options from this code. Has anyone found a sound sequence to troubleshoot this one?

 

according to my code reader handbook.....it is..."trans fluid pressure sensor/switch A/CKT Range/ performance"..I have no idea where this is..probabably tranny shop could tell you...