Question

I have a 2001 Volvo S80 2.4L with engine code P0863. Try to stall and when sat still pops in and out of gear which is strange for an auto i thought any way to turn off the code or repair it ???? help plz

Answer 1

P0863 TCM communication circuit

This is a fault between the ECM and the TCM which results in no response to the accelerator pedal,either one of the module will require a replacement, and you will have to flash the module,,This is a dealer repair.

Answer 2

P0863 Volvo Code - TCM Communication Circuit
Read more: https://www.autocodes.com/p0863_volvo.html