Symptom Chart
NOTE:
If steering movements are made when driving at high speed, or when driving on road surfaces with low frictional resistance, or when passing over bumps, the ABS may operate although sudden braking is not being applied. Because of this, when getting information from the customer, check if the problem occurred while driving under such conditions as these.
NOTE:
During ABS operation, the brake pedal may vibrate a little or may not be able to be pressed. Such conditions are due to intermittent changes in hydraulic pressure inside the brake line to prevent the wheels from locking. This is normal.
SYMPTOM CHART
| SYMPTOM | INSPECTION PROCEDURE NO. |
|---|---|
| Communication between the scan tool and all the system is not possible. | 1 |
| Communication between the scan tool and the ABS-ECU is not possible. | 2 |
| When the ignition key is turned to the "ON" position (Engine stopped), the ABS warning light does not illuminate. | 3 |
| The ABS warning light remains illuminated after the engine is started. | 4 |
| In the inspection with the scan tool service data, the parking brake switch is not turned ON or turned OFF. | 5 |
| The neutral position learning of the steering angular velocity sensor is not detected. | 6 |
| Faulty ABS operation | 7 |