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Home >> Mercedes Benz >> 2021 >> Metris Van Cargo >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments (03 Of 11) -- 447 Chassis >> Basic Knowledge >> Sliding Roof, PSM Function - GF54.21-S-3045TRA

Sliding Roof, PSM Function - GF54.21-S-3045TRA

Model 447 

With Code ED5 (Parameterisable special module) 

Except Code XM7 (MOPF II) 

Model 448 

With Code ED5 (Parameterisable special module) 

Except Code XM7 (MOPF II) 

Sliding sunroof functions 

Before using the module it has to be activated per coding.

Parameter Value range Meaning
Shift_Roof_Run_After_Time 0...255 Run-on time after Klemme15R OFF in minutes
Timeout_TSSR_Switch 0...255 Maximum button operation period up to "Button stuck" is detected, in seconds 0: Timeout monitoring inactive
Timeout_TSSR_Rear_Switch 0...255 Maximum button operation period up to "Button stuck" is detected, in seconds 0: Timeout monitoring inactive

Sliding sunroof software module states 

Function requirements: The sliding sunroof function module is enabled (activated) per coding.

The sliding sunroof function module changes at terminal 15R ON into normal mode. At terminal 15R OFF the run-on time is started.

After terminal 15R OFF a change is made to the run-on mode. The run-on mode changes to standby.

In run-on mode, the control unit is not kept active, i.e. the control unit's run-on time takes priority over the basic functions.

The sliding sunroof function can be operated in both the normal and run-on modes.

Roller sunblind operated 

Activation (AND operation) 

Function cancellation (OR operation) 

Active function 

Parameter 

Rear passenger compartment roller sunblind operated 

Activation (AND operation) 

Function cancellation (OR operation) 

Active function 

Parameter 

Open lifting roof 

Activation (AND operation) 

Function cancellation (OR operation) 

Active function 

Parameter 

  Parameterizable special module (PSM) control unit component description   GF54.21-S-5005TRA
  Overview of system components for parameterizable special module (PSM)   GF54.21-S-9998TRA