Closing sliding/pop-up roof, function - GF77.20-P-2002T

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

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

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function prerequisites 

• Terminal 15 ON
• No overvoltage or undervoltage
• 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 

Pull roof system switch (N70s1) downward to first catch point. The overhead control panel control module (N70) then actuates the SR motor (M12m1).

The direction in which the motor is actuated depends on whether the sliding roof or the pop-up roof is open. The motor is actuated as long as the roof system switch (N70s1) is actuated.

The "Close sliding/pop-up roof" function is interrupted if a lock-up of the sliding/pop-up roof is recognized.