KICKDOWN Switch
WARNING: This page does not describe the selected car, but rather 212 other vehicles, including the 2008 BMW 760Li, 2007 BMW 760Li, 2006 BMW 760i, 2006 BMW 760Li, and 2005 BMW 760i. However, it is still accessible from the selected car via links, so may be relevant.
The TCM receives a kickdown request via one of two possible methods:
- The kickdown signal is a direct ground input to the TCM. The kickdown input is provided by a kickdown switch located under the accelerator pedal. See Fig 1 . This method is used on most BMW vehicles without electronic throttle control systems (except M52TU with MDK).
- The kickdown request is provided by the ECM (DME) via the CAN bus. The kick down request originates from the PWG. There is no separate switch in the PWG. When the PWG voltage reaches approximately 4.5 volts, the ECM will process a kickdown request to the TCM via CAN. The PWG contains a kickdown detent to simulate the feel of a kickdown switch. This method is used on the M62TU, M54, M73, M73TU, N73 and N62 engines. See Fig 2 .