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Home >> Land Rover >> 2000 >> Range Rover Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Introduction >> Self-Diagnostic System >> Retrieving Diagnostic Trouble Codes
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Retrieving Diagnostic Trouble Codes

The first digit of the Diagnostic Trouble Code (DTC) defines whether the DTC set is a Federally mandated DTC (P0xxx) or a Land Rover DTC (P1xxx). A Land Rover TestBook can retrieve and diagnose all DTCs. An OBD-II compliant scan tool can only retrieve and diagnose Federally mandated DTCs. Refer to scan tool manufacturer's user manual for specific procedures. For Discovery Series I DTCs, see DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (GEMS)  table. For Discovery Series II and Range Rover DTCs, see DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (BOSCH)  table.