SL 600 (129.076) V12-6.0L (120.983) (1997)
Keyless Entry Module: Description and Operation
IR DAS X Control Module
The purpose of the IR DAS control module is described below:
a)
Infrared remote control for central locking
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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
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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
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Read in and evaluate signals from mechanical lock switches (SN1-unlock, SN2-lock), not model 129.
b)
Drive authorization stage X
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Control of transponder coil on ignition/starter switch
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Read in and evaluate transponder signal
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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.