Anti-Lock Brake System Indicator: Operation

WARNING: This page is about a different car, the 2004 Dodge Intrepid, 2004 Chrysler Intrepid, 2004 Chrysler Concorde, and 2004 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition key is turned to the ON position, the amber ABS warning indicator lamp is lit until the Controller Anti-Lock Brakes (CAB) completes it's self-tests and turns off the indicator lamp (approximately 4 seconds). The amber ABS warning indicator lamp will illuminate when the CAB detects a condition that results in the shutdown of ABS function or when the instrument cluster does not receive messages from the CAB. The CAB sends a message across the PCI bus circuit that informs the instrument cluster to turn on the amber ABS warning indicator lamp.

NOTE: If the vehicle is equipped with traction control, the TRAC OFF indicator lamp will illuminate anytime the amber ABS warning indicator lamp is on.

Under most conditions, when the amber ABS warning indicator lamp is on, only the ABS function of the brake system is affected; the base brake system and the ability to stop the vehicle are not affected.