Abs Function Check
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1990 Pontiac Bonneville, 1990 Oldsmobile Ninety-Eight, 1990 Oldsmobile Eighty-Eight, 1990 Cadillac Fleetwood, and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
The second step in diagnosis of any anti-lock brake system condition is to perform ABS FUNCTION CHECK. This procedure consists of checking the warning light behavior and checking for ABS codes. It will then lead to the third step in diagnosis of ABS condition.