Unlocking upon transponder recognition, radio frequency/infrared control module, function - GF80.30-P-4020A
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.
MODEL 129, 140 as of 1.6.97
If circuit 15 is actuated on a locked vehicle and the transponder is recognized as valid, the radio frequency/infrared DAS control module (N54/4) puts out a "global unlock" signal.
The turn signals are not actuated. This function can be set with the HHT using the version coding.