Infrared drive authorization system control module, purpose - GF80.30-P-4003-01A

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

FBS 2a

The DAS infrared control module performs the following functions:

a) Infrared remote central locking
- Reading and evaluating transponder signal
After recognition of valid IR signal
- Actuation of
  - Central locking (CL)
  - Anti-theft alarm (ATA)
  - Convenience feature (CF)
  - Confirmation on interior rearview mirror, models 129/140/202/210 or top of roof frame, model 170
  - Confirmation via turn signals (models 170/202/210 via additional relay)
  - Reading in and evaluating the mechanical lock switches (SN1-unlock, SN2-lock), (only ).
b) Drive authorization system stage 2a (DAS2a)
- Actuation of transponder coil on ignition/starter switch
- Release of engine control module via CAN with valid transponder
- Receipt and evaluation of infrared remote control signal code
The DAS infrared control module (N54/1) evaluates the transponder data transferred and, if valid, releases the engine control via the CAN data bus.