The Anti-Lock Brake Computer detected a problem, set a diagnostic fault code, turned the system off, and turned the yellow warning light on to tell you. Your mechanic will connect a scanner to read the code(s). They will indicate the circuit or system that needs further diagnosis.
If the red "Brake" light doesn't turn on, either the bulb is burned out or the switch is broken.
Friday, April 19th, 2013 AT 12:43 PM