Retrieving & Erasing Diagnostic Trouble Codes
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2003 BMW Z8, 2003 BMW Z4, 2003 BMW X5, 2003 BMW M5, and 2003 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
OBD-II Diagnostic Trouble Codes (DTC) can be retrieved or erased using generic scan tool connected to Data Link Connector (DLC). See Figure. Follow scan tool manufacturer's instructions. BMW fault codes can be retrieved or erased using Diagnostic Information System Plus (DISplus) or Group Tester One (GT-1). BMW diagnostic hardware directs user to a specific test routine which provides diagnostic information.