Brake Warning Indicator: Description and Operation

ABS AND TCS (ASR) INDICATORS

This system is equipped with an ABS warning indicator, TCS (ASR) warning indicator, and TCS (ASR) event indicator to alert the driver of a malfunction/event it has detected. The CAB can request the illumination of the ABS warning indicator, TCS (ASR) warning indicator, and TCS (ASR) event indicator via CAN C BUS. The CAB controls the ABS warning indicator by:
- Light steady during an initial test at the beginning of an ignition cycle to function as a bulb check
- Light steady when a system malfunction exists (DTC)
- Light steady If you have not meet the speed required to reset/retest the ABS components

The Instrument Cluster (IC) controls the indicators. The Instrument Cluster transmits a message over the CAN C Bus relating to diagnostics and current lamp status for the ABS and TCS (ASR) indicators. The CAB can control the operation of TCS warning and TCS event indicators by:
- Both light steady with engine off and both go out with engine running
- TCS warning indicator lights steady when a TCS malfunction exists
- TCS event indicator will flash when TCS is in an active event