DTC P1810: TFP Manual Valve Position Switch Assembly - Circuit Malfunction: Notes
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For circuit identification, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS
.