DTC P0886-11: TCM Power Relay Control Circuit Low - Circuit Short To Ground: Action

NOTE: The Gear Selector Sensor Calibration routine must be performed after installing a new automatic transmission or transmission control module, or after removing and installing the existing transmission control module.

Refer to the appropriate system wiring diagram and check the gearshift mechanism power circuit for short circuit to ground
Using the manufacturer approved diagnostic system, clear the DTCs and retest. If the fault persists, install a new transmission control module