Network Wake Up Unsuccessful
WARNING: This page does not describe the selected car, but rather 59 other vehicles, including the 2009 BMW M5, 2009 BMW 650i, 2009 BMW 550i, 2008 BMW M5, and 2008 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.
This fault indicates a problem with the optical transmission. An insufficient volume of light is coming through one position of the ring and may be caused by:
- Control Module is receiving no voltage
- Optical Wave Guide harness defective
- Optical Element in a control module defective (transmit or receive)
- Connector not installed correctly
A distinction must be made as to whether the fault is currently present or sporadic.
For faults currently present, run the Ring Break Diagnosis Test Plan.
For sporadic faults perform the Luminous Power Reduction Test Plan.