Retrieving & Erasing Diagnostic Trouble Codes
WARNING: This page is about a different car, the 2003 BMW 760Li, 2003 BMW 745i, and 2003 BMW 745Li. 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.