ABS
The Electronic Brake Control Module (EBCM) controls the ANTI-LOCK warning indicator over the class 2 serial data line. The EBCM turns the indicator ON for approximately 3 seconds during the engine start up in order to perform a bulb check. The EBCM flashes the ANTI-LOCK warning indicator in order to warn the driver that an ABS malfunction exists, possibly degrading the base brake performance. A solid (not flashing) ANTI-LOCK warning indicator warns the driver that a problem has been detected that affects the operation of the ABS (ABS may be disabled), but normal brake performance will remain. Refer to ABS Description in Antilock Brake System.