2 GENERAL 2003 FEATURES GENERAL 2003 FEATURES DESCRIPTION The 2003 models have the following systems: System Outline Model Name DTC (Diagnostic Trouble Code) To comply with the OBD-II regulations, all the DTC (Diagnostic Trouble Code) have been made to correspond to the SAE controlled codes. Some of the DTC have been further divided into smaller detection areas than in the past, and new DTC have been assigned to them. LS430, GS430/300, SC430, ES300, IS300, LX470 To comply with the OBD-II regulations, all the DTC (Diagnostic Trouble Code) have been made to correspond to the SAE controlled codes. RX300