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Home >> Mercedes Benz >> 2021 >> Metris Van Cargo >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments (05 Of 11) -- 447 Chassis >> Basic Knowledge >> Caravan Control Unit Wake PSM, Function - GF54.21-D-5031TSA

Caravan Control Unit Wake PSM, Function - GF54.21-D-5031TSA

Model 447 

with code JA3 (Intelligent body control.) 

with code XM7 (MOPF II) 

Model 907, 910 

with code JA3 (Intelligent body control.) 

General 

Control is a basic function of the MB Advanced Control, control unit (N175).

The MBAC can actuate the parameterizable special module (PSM) control unit (N26/15).

Wake up PSM 

The MBAC can wake up the vehicle's PSM. To do so, the PSM control unit must be connected to the "DI_Wake-Up_Pushbutton_Switch" interface.

  Signal list, caravan control unit, wake-up, function   GF54.21-D-5075TSA
  Overview of system components of caravan control unit Model 907, 910 GF54.21-D-9992TSA
  Overview of system components of caravan control unit Model 447 GF54.21-S-9992TMA