Construction Diagram: Notes
NOTE:
On vehicles with ASC, the ABS system is controlled by the TCL/ASC-ECU. For the system construction, refer to
GENERAL DESCRIPTION
.
ANTI-LOCK BRAKING SYSTEM REFERENCE CHART
| NAME OF PART | NUMBER | OUTLINE OF FUNCTION | |
|---|---|---|---|
| Sensor | ABS sensor | 1 | Sends alternating current signals at frequencies which are proportional to the rotation speeds of each wheel to the ABS-ECU. |
| Stoplight switch | 2 | Sends a signal to the ABS-ECU to indicate whether the brake pedal is depressed or not. | |
| G sensor < AWD > | 3 | Detects acceleration in the travel direction of the vehicle and sends a signal that is converted to a voltage value to the ABS-ECU. | |
| Actuator | Hydraulic unit | 4 | Drives the solenoid valves according to signals from the ABS-ECU in order to control the brake hydraulic pressure for each wheel. |
| ABS warning light | 5 | Illuminates in response to signals from the ABS-ECU when a problem develops in the ABS system. | |
| Brake warning light | 6 | Illuminates in response to signals from the ABS-ECU when a problem develops in the EBD system. | |
| Data link connector | 7 | Outputs the diagnostic trouble codes and allows communication with the scan tool. | |
| ABS-ECU | 8 | Controls actuators (described above) based on the signals coming from each sensor. | |
| Controls the self-diagnosis and fail-safe functions. | |||
| Controls the diagnostic function (scan tool compatible). | |||