Light Sequence Determination

The second step in diagnosis of any anti-lock brake system condition is determination of the warning light behavior. The system uses 2 warning lights, the Red "BRAKE" warning light and an Amber "Check Anti-Lock Brakes" light. By observing when these lights come on, specific components and sub-systems of the brake system may be isolated as likely causes of a system malfunction.

Each light sequence illustration is divided into 7 areas which represent vehicle status, with the behavior of the "BRAKE" and "Check Anti-Lock Brakes" lights represented in horizontal rows below vehicle status headers. See Figure.

"BRAKE" and "Check Anti-Lock Brakes" light status is indicated by the shaded areas in the horizontal rows below each vehicle status header. Right diagonal shading indicates illumination of the "Check Anti-Lock Brakes" light, while a left diagonal shading indicates a lit "BRAKE" light. A vehicle status block which is not entirely shaded means that the light is on only for part of the test period. See Figure or Figure .