DTC P2176-51: Throttle Actuator A Control System - Idle Position Not Learned - Not programmed: Action

Check battery is in fully charged and in a serviceable condition using a battery tester and battery care manual
Allow powertrain control module to power down. Turn on ignition and wait for 60 seconds. Start engine, this will allow new throttle adaption data to be stored
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest