Abs Control Unit: Notes

The ABS control unit performs the following functions.

• Controls the ABS
• Calculates vehicle speed
• Self-diagnostics: Stores malfunction codes, performs ABS control unit self-diagnostic and fail-safe functions with two separated microprocessors.

The ABS control unit continuously checks locking of each wheel and controls each valve to adjust brake fluid pressure if required. The ABS control unit also checks that components are working properly and stops ABS if a malfunction is detected. Then, it is operated as a standard brake system.