ABS Light: Testing and Inspection

Check that the ABS warning light illuminates as follows.
1. When the ignition switch is turned to "ON", the ABS warning light flashes 4 times during a 0.6 to 0.8 second period and then the light switches off.
2. When the ignition switch is turned to "START", the ABS warning light remains illuminated.
3. When the ignition switch is turned back to the "ON", the ABS warning light flashes 4 times and then the light stays switched off.
4. If the illumination is other than the above, check the diagnostic trouble codes.