Section 108 (Computer Relearn Procedures): Introduction: Notes
WARNING: This page does not describe the selected car, but rather 17 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.
NOTE:
Before replacing any component that scan tool suggests are faulty, ensure that all wiring connections and harness connectors are okay. Ensure that power and ground circuits are functioning properly. For circuit identification, see appropriate WIRING DIAGRAM under ENGINE PERFORMACE in SYSTEM WIRING DIAGRAMS for vehicle being tested.