GF77.20-P-2009TX Open Tilting/Sliding Roof, Function
GF77.20-P-2009TX Open Tilting/Sliding Roof, Function
- with CODE (414) Power glass tilting/sliding roof
Manually open with roof switch (N70s1)
Function requirements
^ Circuit 15 "ON"
^ No overvoltage or undervoltage
^ 5 min. after terminal 15 "OFF", with front doors not yet opened (delay time) and vehicle not locked from outside
^ The overhead control panel control module (N70) recognizes the non-actuated state (roof switch not actuated for longer than 40 ms) before the roof switch is actuated
Function
The status of the EIS control unit (N73) is transmitted by the overhead control panel control unit via the controller area network bus class B (interior compartment) CAN-B)
An adjustment request via the roof switch to the SR motor (M12m1) is only performed, if circuit 15 "ON" is recognized on the EIS control unit. When the roof switch is pressed toward rear to the 1st catch, the adjustment is accomplished until the desired position or the end stop is reached.
Obstruction sensor is not effective during manual adjustment
The "Open sliding roof" function is limited in the denormalized state. Actuation is only possible for a short time. Release and then press switch again to reactuate
Automatically open with roof switch
Function requirements
^ Circuit 15 "ON"
^ No overvoltage or undervoltage
^ 5 min. after terminal 15 "OFF", with front doors not yet opened (delay time) and vehicle not locked from outside
^ The overhead control panel control module recognizes the non-actuated state (roof switch not actuated for longer than 40 ms) before the roof switch is actuated
^ Tilting/sliding roof normalized
Function
The status of the EIS control unit is transmitted to the overhead control panel control unit via CAN interior. An adjustment request via the roof switch to the SR motor is only performed, if circuit 15 "ON" is recognized on the EIS control unit. When the roof system switch is pressed toward rear beyond the 1st catch, adjustment is performed until the limit stop is reached.
The obstruction sensor is always effective on automatic lock operations.
The automatic function is interrupted when the roof switch is pressed again
Opening with air recirculation switch (N22s2) (except code (581) Comfort automatic air conditioning) and air recirculation switch (N22/7s2) (with code (581) Comfort automatic air conditioning) (except vehicles as of model year 09 /�J08 with code (494) USA version or code (460) Canada version)
Function requirements
^ Circuit 15 "ON"
^ No overvoltage or undervoltage
^ Previously close tilting/sliding roof via recirculated air switch
Aborting the function
^ Tilting/sliding roof denormalization
^ Roof switch actuation
^ Blockage detection
^ Failure of CAN message (CAN = Controller Area Network).
^ Actuation of excess force limiter
Function
When the air recirculation switch is pressed for t > 1.5 s, the adjustment request in the "opening" direction is transmitted by the AAC [KLA] control and operating unit (N22) (except code (581) Comfort automatic air conditioning) or comfort AAC control and operating unit (N22/7) (with code (581) Comfort automatic air conditioning) to the left front door control unit (N69/1), right front door control unit (N69/2), left rear door control unit (N69/3), right rear door control unit (N69/4) and overhead control panel control unit via interior CAN. When the "Open" message is received by the air recirculation switch, the tilting/sliding roof and the windows in the front and rear doors are actuated in the "Open" direction until the stored position is reached.
If "Closing" via the recirculated air switch is initiated again during the "Opening" sequence before the stored position is reached, then the initially stored opening position is retained.
Opening with transmitter key (A8/1)
Function requirements
^ Circuit 15C, circuit 15R and circuit 15 "OFF"
^ Voltage not to high or too low
Abort conditions
^ Function requirements are not satisfied
^ Drive lock-up recognition
^ Actuation request is rescinded
^ Absence of CAN message for t >50 ms
^ Tilting/sliding roof denormalization
Function
When the "Lock" button the transmitter key is pressed for a longer period of time, the left front IR Receiver unit (A26/1) or right front IR receiver unit (A26/2) (only vehicles with code (494) USA version or code (498) Japan version) transmit the opening request to the corresponding front door control unit.
The right front IR receiver unit is installed only in the USA and Japan version.
The EIS control unit signals its status to the door control units and to the overhead control panel control unit. When the key is removed the power windows and the SR motor are actuated and opened to the stored value Moreover, after checking the function requirements the seat ventilation receives the "Start" command
Comfort opening can also be performed with non-normalized windows. If the tilting/sliding roof is denormalized, this possibility is no longer possible.
If the button on the transmitter key is released during this operation, its stop immediately. A new command can only be accomplished after checking the function requirements.
