Main Components And Functions: Notes
MAIN COMPONENTS FUNCTIONS DESCRIPTION
| Parts name | No. | Functional description | |
|---|---|---|---|
| Sensor | Wheel speed sensor | 1 | Outputs the frequency signal in proportion to the rotation speed of each wheel to ABS-ECU. |
| Magnetic encoder for wheel speed detection | 2 | The wheel speed sensor is a pulse generator. When the magnetic encoder for wheel speed detection (a plate on which north and south pole sides of the magnets are arranged alternately) rotates, it outputs frequency pulse signal in proportion to each wheel speed. | |
| Stop light switch | 3 | Outputs the signal indicating whether the brake pedal is depressed or not through ETACS-ECU to ABS-ECU via the CAN line. | |
| Actuator | Hydraulic unit | 4 | Drives the solenoid valve using the signal from ABS-ECU, and controls the brake fluid pressure for each wheel. |
| ABS warning light | 5 | Informs the driver of the system status by illuminating, flashing, or turning off the warning light according to the signal from ABS-ECU. | |
| Brake warning light | 6 | Used as the warning light for the parking brake, brake fluid level, and EBD control. Informs the driver of the system status by illuminating or turning off the warning light according to the signal from ABS-ECU, ETACS or combination meter. | |
| Data link connector | 7 | The ABS-ECU establishes the communication with scan tool. | |
| ABS control unit (ABS-ECU) | 8 | Controls the actuators (described above) based on the signals coming from each sensor. | |
| Controls the self-diagnostic functions and fail-safe functions. | |||
| Controls diagnostic function (Compatible with scan tool). | |||