On-Board Diagnostics

The anti-lock brake/traction assist system anti-lock brake control module is capable of performing an on-board diagnostic using Rotunda New Generation STAR (NGS) tester.

The anti-lock brake control module monitors system operation and can store all defined diagnostic trouble codes in its memory. It is important to understand that the anti-lock brake control module CANNOT recognize some failures. Therefore if a symptom exists and no diagnostic trouble codes are stored by the anti-lock brake control module, other diagnostic steps must be followed.

The anti-lock brake control module cannot store a diagnostic trouble code if there is no power to the anti-lock brake control module. This condition can be found by using the Quick Check Sheet. Quick Check Sheet