Abs With EBD & BA & TRAC & VSC System: Precaution

• If a terminal contact point malfunction or part installation problem occurs, removal and reinstallation of the suspected part may return the system to normal. However, be aware that the normal condition may only be temporary. 
• Before disconnecting connectors or removing/installing parts, determine the malfunctioning area by checking and writing down the vehicle's condition at the time of the malfunction (DTC outputs, freeze frame data, etc.). 
• Be sure to check for DTCs related to other systems. The ABS with EBD & BA & TRAC & VSC system may be influenced by malfunctions in other systems. 
• Be sure to remove and install the skid control ECU, brake actuator assy and each sensor with the ignition switch OFF unless specified in the inspection procedure. 
• After removing and installing the skid control ECU, brake actuator assy and each sensor, be sure to check that the normal display is output in the test mode inspection and DTC output inspection. 
• After replacing the yaw rate sensor and/or the brake actuator assembly, make sure to perform yaw rate sensor and deceleration sensor zero point calibration. (see  CALIBRATION   ). 
• The CAN communication system is used for the data communication between the skid control ECU (with actuator), the steering angle sensor, and the yaw rate sensor (deceleration sensor). If there is trouble in the CAN communication line, the DTC in the communication line is output. 
• If the DTC in the CAN communication line is output, repair the malfunction and troubleshoot the ABS with EBD & BA & TRAC & VSC systems. 
• Since the CAN communication line has its own length and route, it cannot be repaired temporarily with a bypass wire, etc. 

Fail-safe function:

When a failure occurs in the ABS & BA & TRAC & VSC system, the ABS warning lamp and the VSC warning lamp turns on and the ABS & BA & TRAC & VSC operations are prohibited. In addition to this, when there is a failure that disables the EBD operation, the brake warning lamp also turns on and the EBD operation is prohibited.