I posted in the previous thread about my van stumbling upon acceleration. Well now I am getting the following codes and the van barely has enough power to move. The codes are: P1860 Enhanced: Tcc Pulse width modulation sol ckt electrical, P0758 Shift sol B ckt electrical, PO755 Shift Sol B malfunction, PO740 TCC ckt malfunction

What exactly does this all mean and how much is it going to cost? Many thanks to whoever can explain.

You have two codes for shift sol "B"......The "A" and "B" solenoids need to function to shift through all four gears.....for example, if a solenoid is NOT working, instead of starting in first gear, you could be starting in second gear, which would feel sluggish....however, diagnosis here is critical......a scan tool would be needed to power the A and B solenoids and to check the power and ground circuits going to the tranny.......then the circuits inside the tranny to the solenoids have to be checked......

I guess the dealership would be the best place to go for the scan tool diagnosis.

Turned out it is the internal wiring harness. Dealership wants $850.00 to fix says that the harness is $320.00. Is the harness that expensive My mechanic will put in a used transmission for $1200.00. Think that I am going with the used transmission.

Didja check the fuse for the transmission? If it blows the transmission defaults to running/starting in 3rd gear and that is all you have. If there is no power to the transmission the circuits in the transmission wont be detected by the PCM and will set codes for the solenoids.....

Do you mean the TCC fuse? If so, yes I did. I replaced it and it kept blowing.

Ok, this is related to the other thread right? 90k on plugs...... Good luck with it....

Yes, related to the plug post. Thanks again.