FixVault

DTC Chart - PCM

WARNING: This page is about a different car, the 2018 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
DTC  Description  Action 
P0815 Upshift Switch Circuit For 3.7L Ti-VCT, GO to Pinpoint Test C . For 3.5L GTDI, GO to Pinpoint Test D .
P0816 Downshift Switch Circuit For 3.7L Ti-VCT, GO to Pinpoint Test C . For 3.5L GTDI, GO to Pinpoint Test D .
P1780 TCS (O/D Cancel) Circuit Out Of Self Test Range GO to Pinpoint Test E .