Sensor Function
WARNING: This page is about a different car, the 2004 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.
Each sensor has an internal magnetic reed switch. When the J 41760 sensor activating tool is held close to a sensor, the reed switch closes, activating the sensor. See Special Tools and Equipment . The sensor respond to a magnetic activation by transmitting in learn mode. When the RCDLR receives a learn mode transmission, while in TPM learn mode, it will assign that sensor's Id to the location on the vehicle relative to the order in which it was learned.