12 00... Instructions on component testing

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

During all inspections and work on engine electrics and electronics, always observe safety regulations and accident prevention specifications.
Always disconnect connectors of control units or components before checking electric wires.

Testing Aids:

Schematics, refer to BMW Diagnosis Information System (DIS)
Use appropriate test lines, adapters, terminals and test tips, refer to BMW Diagnosis Information System (DIS)
The inspection values for component testing are located in the BMW Diagnosis Information System (DIS)