Troubleshooting Notes

- The ABS is composed of electrical components, mechanical components (ABS hydraulic unit), and the components of the standard brake system.

- Fundamentally, malfunction of the ABS electrical or mechanical components is judged by the on-board diagnosis function within the ABS control module. Malfunctions are indicated by the Warning light in the instrument panel. The technician can locate a malfunction by switching the system to the diagnostic test mode.

- The on-board diagnostic system must be used when diagnosing malfunction of the ABS.