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Home >> Mercedes Benz >> 2004 >> E500 Base >> Repair and Diagnosis (Single Page) >> Electrical >> Horns >> Electrical System, Equipment & Instructions - Basic Knowledge - 211 Chassis >> Basic Knowledge >> Upper control panel control unit, location/task/design/function - GF54.21-P-4105 >> Upper control panel control unit, location/task/design/function - GF54.21-P-4105T >> Notes
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Upper control panel control unit, location/task/design/function - GF54.21-P-4105T: Notes

Model 211.0 /6 

Fig 1: Identifying Upper Control Panel Control Unit Location - Model 211.0 /6
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  Upper control panel control unit, location The upper control panel control unit (N72/1) is located below the audio unit in the central area of the dashboard.  
  Upper control panel control unit, task   GF54.21-P-4105-02T 
  Upper control panel control unit, design   GF54.21-P-4105-03T 
  Upper control panel control unit, function The upper control panel control unit (N72/1) operates with its own dedicated microprocessor which scans switches, actuates appropriate semiconductor switches and exchanges data with the interior CAN.