Automatic opening/closing of sliding/pop-up roof, function - GF77.20-P-2008T

MODEL 211.0/2 with CODE (414a) Electric glass sliding/pop-up roof 

Fig 1: Automatic Opening/Closing Of Sliding/Pop-Up Roof Communication Diagram

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function prerequisites 

• Terminal 15 ON
• No overvoltage or undervoltage
• Sliding/pop-up roof synchronized
• 5 min after circuit 15 OFF, when the front doors have not been opened (delay time) and the vehicle has not been locked from the outside.
• Overhead control panel control module (N70) recognizes the non-actuated state (roof system switch (N70s1) not actuated for longer than 40 ms) before the roof system switch (N70s1) is actuated.

Function 

When the roof system switch (N70s1) is actuated briefly in the overhead control panel control module (N70) beyond the first catch point the automatic function is triggered according to the actuation direction.

Actuation of the SR motor (M12m1) for the sliding/pop-up roof is completed when the end position is recognized.

The obstruction sensor is always active during automatic closing.

The automatic function is interrupted by pressing the roof system switch (N70s1) (in any direction) again.