Issue: A Technician will find the following Diagnostic Trouble Code (DTC) relevant to catalyst system efficiency, P0420-00 stored in the Powertrain Control Module (PCM). The Malfunction Indicator Lamp (MIL) could also be illuminated. Affected vehicle vin ranges as follows ? Range Rover Sport (LW) AJ200P PHEV ? 146054 onwards. Range Rover (LG) AJ200P PHEV ? 343646 onwards
