Sliding Sunroof Control Module, Basic Function - GF77.20-P-9891A
Model All (4xWD)
with code 414 (Electric sunroof, glass version)
Model All (CAR)
with code 414 (Electric sunroof, glass version)
Example illustration
Illustrative example
Overview
This document contains information on:
- General
- Function
General
The drive unit for sliding sunroof control module (1) opens and closes the sliding sunroof and is located on the front roof frame.
The control unit of the sliding sunroof actuates the drive unit of sliding sunroof control module (1).
Function
The following elements are integrated in the sliding sunroof control module (1):
- 2 Hall sensors (position and speed detection)
- Sliding sunroof motor (drive unit for reversing transmission)
- Sliding sunroof control unit
- Redirecting transmission (conversion of the rotary movement into linear movement of the drive spindle)
The sliding sunroof control unit controls the movements of the sliding sunroof via the sliding sunroof motor and evaluates information including the following for this purpose:
- Hall sensor signals of the sliding sunroof motor
- Actuation requirements
- Signals of the rain and light sensor
- Status of the front doors (open/closed)
- Vehicle speed
- Ambient temperature
The control unit for the sliding sunroof is connected to the network architecture of the vehicle.
The sliding sunroof control unit transmits information on the current position and movement of the sliding sunroof via the network architecture.
Overheating protection:
The sliding sunroof control unit protects the sliding sunroof motor from overheating. The temperature of the sliding sunroof motor depends on the supply voltage, the flowing current, the duration of actuation and the outside temperature. If the overheating protection is triggered, the actuation of the sliding sunroof motor will be disabled for a minimum cooling time.
Exception:
The overheating protection function will not function when the roof is reversing (after a blockage has been detected).
| Function schematics | |||
| Function schematic, open/close sliding roof | Model 465 with code 414 (Electric sunroof, glass version) | PE77.20-P-2500-97E | |
| Model 167, 293 with code 414 (Electric sunroof, glass version) Model 213, 257, 290 as of model year 2021 with code 414 (Electric sunroof, glass version) | PE77.20-P-2500-97A | ||
| Model 206, 214 with code 414 (Electric sunroof, glass version) | PE77.20-P-2500-97B | ||
| Component descriptions | |||
| Panoramic sliding roof system drive unit, component description | Model 206 with code 414 (Electric sunroof, glass version) | GF77.20-P-5213C | |
| Model 214 with code 414 (Electric sunroof, glass version) | GF77.20-P-5213K |