Safety Checks
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.
Additional to the communication-check the ECU checks the critical receive-signals from the gearbox:
- Gearbox speed
If the gearbox speed exceeds the limit, or is not plausible to the engine speed, an error is detected.
- Target gearbox speed
If the target gearbox speed exceeds the limit, or is not plausible to the engine speed, an error is detected
- Clutch torque:
The clutch torque and the sate of the clutch must be consistence
The fault code is P0700.
The internal calculated gearbox speed (from gear info and wheel speed) is checked as well. If there is an inconsistence to the engine speed, the fault code P1670 is set.