Built-In Test Equipment (BITE) Test Cycle
WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 1999 Mercedes-Benz SLK230, 1999 Mercedes-Benz ML430, 1999 Mercedes-Benz ML320, 1999 Mercedes-Benz E430, and 1999 Mercedes-Benz E320. However, it is still accessible from the selected car via links, so may be relevant.
Test cycle begins when wheel speed in all 3 speed channels exceeds 3 MPH. Test cycle, activated by speed sensor voltage, also monitors safety circuit and logic section. Electronic control unit is given test signals to check whether or not correct output signals are available.