P0866 OBD Code Definition:
P0866 Transmission Control Module (TCM) Communication Circuit High
P0866 OBD Code Description:
OBD Code P0866
TCM Communication Circuit High
P0866 OBD Code Definition:
P0866 Transmission Control Module (TCM) Communication Circuit High
P0866 OBD Code Description:
I have a car I need to work on. It has a code P0866 Subaru. Is it the TCM or wiring, thank you