Trac Off
The Antilock Brake System (ABS) sends the traction off indicator control data via the class 2 serial data line. This indicator may be on if one of the following functions occur:^ The Electronic Brake Control Module (EBCM) detects a condition that causes the traction control system to be inhibited.
^ The traction control is turned off.
Refer to ABS Operation in Antilock Brake System.