Refer to DTCs C1401 and C1402 ().

Refer to the CAN communication system (for LHD: , for RHD: ).

The solenoid relay is built into the master cylinder solenoid.

This relay supplies power to each solenoid. If the initial check is OK, after the ignition switch is turned to ON, the relay turns on.

Refer to DTCs C1401 and C1402 ().

The brake fluid level warning switch (brake master cylinder reservoir sub-assembly) sends the appropriate signal to the skid control ECU (master cylinder solenoid) when the brake fluid level drops.

Check with the customer to determine if frequent braking has been performed.

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (master cylinder solenoid). These signals are used for brake control.

The skid control ECU (master cylinder solenoid) receives signals from the yaw rate sensor assembly via the CAN communication system.

The yaw rate sensor assembly has a built-in acceleration sensor.

The skid control ECU (master cylinder solenoid) receives signals from the yaw rate sensor assembly via the CAN communication system.

The yaw rate sensor assembly has a built-in acceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2).

If the skid control ECU (master cylinder solenoid) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (master cylinder solenoid) stores DTC C1440 while VSC operation is temporarily disabled.

It is not a malfunction if the system and sensor circuits are normal and if the normal VSC operation resumes, which automatically clears DTC C1440, after the vehicle is returned to a normal position.