Traction Control System

TRAC OFF
The IPC illuminates the TRAC OFF indicator when any of the following occur:
^ The Electronic Brake Control Module (EBCM) inhibits the traction control system due to a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination. The IPC sends a class 2 message to the BCM in order to activate an audible warning.
^ The EBCM detects that the traction control switch is pressed (signal circuit is low). The IPC receives a class 2 message from the EBCM indicating the switch status.
^ The IPC receives a class 2 message from the EBCM requesting illumination of the ABS indicator.
^ The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 5 seconds.

TRACTION CONTROL SYSTEM ACTIVE - 91
The IPC illuminates the TRACTION CONTROL SYSTEM ACTIVE 91 message in the DIC when the electronic brake control module (EBCM) detects that the traction control system is active. The IPC receives a class 2 message from the EBCM requesting illumination.