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Home >> Smart >> 2015 >> Fortwo Electric Drive, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Frame, Trailer Operation - 212 Chassis) >> Testing & Repair >> Removal/install trailer recognition control unit - AR31.19-P-1300EW

Removal/install trailer recognition control unit - AR31.19-P-1300EW

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MODEL 212.0/2 with CODE 550 (Trailer coupling) 

Shown on model 212.2 

Fig 1: Trailer Recognition Control Unit Remove/Install Components - Shown On Model 212.2
G09976041Courtesy of MERCEDES-BENZ USA

Shown on model 212.0 

Fig 2: Trailer Recognition Control Unit Remove/Install Components - Shown On Model 212.0
G09976042NOTESREMOVINGINSTALLINGIMPORTANTINSPECTCourtesy of MERCEDES-BENZ USA
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Switch off all electrical consumers and the ignition    
2.1 Remove lining on the right-hand side of the trunk MODEL 212.0  
AR68.30-P-4600EW
2.2 Remove cover on the right side in cargo area MODEL 212.2  
3 Place digital TV tuner (A90/3) with bracket and with its lines connected to one side MODEL 212.2 with CODE 865 (Digital TV tuner)  
4 Disconnect connectors from trailer recognition control unit (N28/1) IMPORTANT Connectors are coded and cannot be exchanged.  
5 Remove trailer recognition control unit (N28/1)    
6 Install in the reverse order    
INSPECT Check     
7 Perform function test of light signals at trailer hitch socket