Component description for the CC [TPM] switch. - GF30.20-P-2100V

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.

ENGINE 272.967 in MODEL 164, 251

ENGINE 273.923 in MODEL 164

ENGINE 273.943 in MODEL 164

ENGINE 273.963 in MODEL 164, 251

Location

Fig 1: Locating Components For CC [TPM] Switch - Engines 272.920/940/941

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The CC [TPM] switch is located at the top left of the steering column module (N80).

Task

The CC push-button switch switches the cruise control functions, Distronic (with Distronic) and variable speed limitation (except ) on and off.

Function

When the cruise control push-button switch is operated, two switching contacts are always activated simultaneously. The actual input takes place by closing the switching contacts (storing the speed). The safety contact must close simultaneously so that the input is accepted. The shift signals from the CC push-button switch are detected by the steering column module and transmitted to the CAN data bus.

For Distronic (DTR)

The Distronic control unit (N63/1 up to 06/2004 and A89n1 as of 07/2004) evaluates shift signals for operation of Distronic and sends corresponding signals for speed limitation to the ME-SFI [ME] control unit (N3/10).

Up to 05/2005

The ME-SFI [ME] control unit evaluates shift signals for operation of cruise control and variable speed limitation (except ).

From 06/2005

The ESP control unit, ESP and BAS control unit or ESP, SPS [PML] and BAS control unit (N47-5) evaluate the shift signals for operation of cruise control and variable speed limitation (except ) and send corresponding signals for the purpose of speed limitation to the ME-SFI [ME] control unit.