ME engine speed signal, function - GF07.61-P-3017V

ENGINE 272.920 in MODEL 203 up to Model Year 8

ENGINE 272.922 in MODEL 211

ENGINE 272.940 in MODEL 203 up to Model Year 8

ENGINE 272.941 in MODEL 203 up to Model Year 8

ENGINE 272.942 in MODEL 171 up to Model Year 8

ENGINE 272.943 in MODEL 211, 219

ENGINE 272.944 in MODEL 211

ENGINE 272.945 in MODEL 251 up to Model Year 8

ENGINE 272.946 in MODEL 221 up to Model Year 8

ENGINE 272.960 in MODEL 203 up to Model Year 8

ENGINE 272.963 in MODEL 171 up to Model Year 8

ENGINE 272.964 in MODEL 211, 219

ENGINE 272.965 in MODEL 221 up to Model Year 8

ENGINE 272.966 in MODEL 230 up to Model Year 8

ENGINE 272.967 in MODEL 164, 251 up to Model Year 8

ENGINE 272.970 in MODEL 203 up to Model Year 8

ENGINE 272.972 in MODEL 211

ENGINE 272.975 in MODEL 221 up to Model Year 8

ENGINE 273.922 in MODEL 221 up to Model Year 8

ENGINE 273.923 in MODEL 164 up to Model Year 8

ENGINE 273.924 in MODEL 221 up to Model Year 8

ENGINE 273.960 in MODEL 211, 219

ENGINE 273.961 in MODEL 216, 221 up to Model Year 8

ENGINE 273.962 in MODEL 211

ENGINE 273.963 in MODEL 164, 251 up to Model Year 8

ENGINE 273.965 in MODEL 230 up to Model Year 8

ENGINE 273.967 in MODEL 209

ENGINE 273.968 in MODEL 221 up to Model Year 8

ENGINE 272.940 in MODEL 209

ENGINE 272.960 in MODEL 209

Shown on ENGINE 272

Fig 1: ME Engine Speed Signal Chart - Shown On Engine 272

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown on ENGINE 273

Fig 2: ME Engine Speed Signal Chart - Shown On Engine 273

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The short-circuit proof engine speed signal "TNA" is generated from the signals from the crankshaft Hall sensor in the ME control unit. The output stage output can accept a maximum load of 20 mA.

The signal is picked up at the data link connector. In addition, the control unit outputs a CAN message with the engine speed to further control units and to the instrument cluster.

The engine speed signal "TNA" is a square wave signal with a constant duty cycle. 6 pulses are output per engine revolution. If the signal from the crankshaft Hall sensor fails, then the signals of the camshaft Hall sensor are used as a replacement.

Component description for the ME-SFI [ME] control unit	GF07.61-P-6000V
Component description for the crankshaft Hall sensor	GF07.04-P-6220V
Component description for the camshaft Hall sensor	GF07.04-P-6020V