Purpose of drive authorization system (DAS) infrared control module - GF80.30-P-4003-01B

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 X

The purpose of the IR DAS control module is described below:

a) Infrared remote control for central locking
- Receive and evaluate signals from lock switches 1 and 2 from infrared remote control (RCL) module, not model 129
After recognition of valid IR Signal
- Actuation of
  - Central locking (CL), not model 129
  - Anti-theft alarm (ATA), not model 129
  - Convenience feature (CF), not model 129
  - Remote trunk release (RTR), only models 140 and 202/210 sedan
- Read in and evaluate signals from mechanical lock switches (SN1-unlock, SN2-lock), not model 129.
b) Drive authorization stage X
- Control of transponder coil on ignition/starter switch
- Read in and evaluate transponder signal
- Release engine control module via CAN when transponder code is valid
The IR DAS control module (N54/1) evaluates the transponder data received and, when valid, releases the engine control via the CAN bus.