Upon receiving the hill-start assist control operating signal from the skid control ECU (master cylinder solenoid), the relay contact turns on and the stop light comes on.

DTC C1379 is cleared when the CRAWL switch (suspension control switch) sends a CRAWL switch (suspension control switch) operation signal or when test mode ends.

The skid control ECU (master cylinder solenoid) acquires steering sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the previous zero point.

The steering sensor zero point malfunction warning is canceled by turning the ignition switch off.

Turn the ignition switch off.

The skid control ECU (master cylinder solenoid) receives signals from the ECM via the CAN communication system.

The skid control ECU (master cylinder solenoid) measures the speed of each wheel by receiving signals from the speed sensor. These signals are used for recognizing that all 4 wheels are operating properly. Therefore, all wheel signals must be equal.

Refer to DTC C1419 and C1435 ().

The skid control ECU (master cylinder solenoid) acquires steering angle sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. The skid control ECU (master cylinder solenoid) also stores the previous zero point.

Steering sensor signals are sent to the skid control ECU (master cylinder solenoid) via the CAN communication system. When there is a malfunction in the CAN communication system, it is detected by the steering sensor zero point malfunction diagnostic function.

The skid control ECU (master cylinder solenoid) communicates with the steering control ECU via CAN communication.

If a malfunction in the VGRS system is detected, cooperative control of the steering is prohibited by the fail-safe function.