4: Brake Operation Is Abnormal

TECHNICAL DESCRIPTION (COMMENT)
The cause depends on driving and road surface conditions, so diagnosis may be difficult. However, if no diagnostic trouble code is displayed, carry out the following inspection.

TROUBLESHOOTING HINTS
The most likely cause for this condition:
- Malfunction of the hydraulic unit

DIAGNOSIS
Check the hydraulic unit.
If the hydraulic unit (integrated with ABS-ECU) is malfunctioning, replace it. Then check that the malfunction symptom is eliminated.