Main Components And Functions
MAIN COMPONENTS AND FUNCTIONS CHART
| Parts name | No. | Functional description | |||
|---|---|---|---|---|---|
| Sensor | Wheel speed sensor | 1 | Outputs the frequency pulse signal in proportion to the rotation speed of each wheel to ASC-ECU. | ||
| Magnetic encoder for wheel speed detection | 2 | When the magnetic encoder for wheel speed detection (a plate on which north and south pole sides of the magnets are arranged alternately) rotates, the wheel speed sensor outputs frequency pulse signal in proportion to each wheel speed. | |||
| Stoplight switch | 3 | Outputs the signal indicating whether the brake pedal is depressed or not to ASC-ECU. | |||
| G and yaw rate sensor | 4 | Detects the yaw rate, and longitudinal and lateral acceleration of a vehicle, then outputs the signal to ASC-ECU via the CAN line. | |||
| Steering wheel sensor | 5 | Detects the steering angle of steering wheel, and outputs the signal to ASC-ECU via the CAN bus line. | |||
| ASC OFF switch | 6 | Outputs the ASC ON/OFF signal to ASC-ECU. | |||
| Master cylinder pressure sensor | 7 | Integrated into the hydraulic unit, converts the signal of brake fluid pressure in master cylinder to the voltage value, then outputs the value to ASC-ECU. | |||
| Wheel cylinder pressure sensor | 8 | Integrated into the hydraulic unit, converts the signal of brake fluid pressure in wheel cylinder of each wheel to the voltage value, then outputs the value to ASC-ECU. | |||
| Actuator | Hydraulic unit | 9 | Drives the solenoid valve using the signal from ASC-ECU, and controls the brake fluid pressure for each wheel. | ||
| ABS warning light | 10 | Informs the driver of the system status by illuminating, flashing, or turning off the warning light according to the signal from ASC-ECU. | |||
| ABS warning display | 11 | Informs the driver of the system status by illuminating or turning off the warning light according to the signal from ASC-ECU. | |||
| Brake warning light | 12 | 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 ASC-ECU. | |||
| Brake warning display | 13 | Used as the warning light for the brake fluid level and EBD control. Informs the driver of the system status by illuminating or turning off the brake warning display according to the signal from ASC-ECU. | |||
| ASC operation display and light | 14 | According to the signal from ASC-ECU, flashes when the system is active to inform the driver of the status. | |||
| ASC warning display and light | 15 | The TCL function and skid control function use the same display. According to the signal from ASC-ECU, the display is illuminated to inform the driver that the system is abnormal. | |||
| ASC OFF display | 16 | Informs the driver of the ASC system shutdown by illuminating according to the signal from ASC-ECU. | |||
| Data link connector | 17 | Outputs the diagnostic trouble code and establishes the communication with the scan tool. | |||
| Engine Control Module (ECM) | 18 | Controls the engine output based on the signal from ASC-ECU. | |||
| TC-SST ECU(1) | 19(1) | Outputs the shift position to ASC-ECU. | |||
| AWC ECU | 20 | Outputs the drive status and brake fluid pressure request to ASC-ECU. | |||
| ASC-ECU | 21 | Controls the actuators (described above) based on the signals coming from each sensors. | |||
| Controls the self-diagnostic functions and fail-safe functions. | |||||
| Controls diagnostic function (Compatible with scan tool). | |||||
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