Diagnostic Overview
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW M5, 2009 BMW M6, 2009 BMW M5, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.
The purpose of this diagnosis is to detect electrical faults as defined in OBDII requirements. The input signal is analog from CAN. If an error is present on CAN signal, an error symptom is set and an error counter is de-bounced.
Additionally the rationality of the outside temperature sensor signal is compared to a model.