Transmission Overload Recognition
WARNING: This page is about a different car, the 1993 Mercedes-Benz 300E. However, it is still accessible from the selected car via links, so may be relevant.
Transmission overload protection switch is a hydraulic pressure switch connected to working pressure circuit of brake band B1. Switch function is dependent on B1 working pressure. The engine control module uses transmission overload recognition to protect transmission from being overloaded.