Sensor Functions Using J-46079

Each sensor has an internal low frequency (LF) coil. When the J-46079  tool is used in activate mode it produces an LF transmission that activates the sensor. See Special Tools . The sensor responds to a LF activation by transmitting in learn mode. When the BCM receives a learn mode transmission while in TPM learn mode, it will assign that sensor ID to the location on the vehicle relative to the order in which it was learned.