ECU Diagnosis Information
4WAS MAIN CONTROL UNIT
Protection Function (4WAS Main Control Unit)
4WAS system enters in the protection function mode (4WAS system temporarily stopped) if 4WAS system continues the heavy load condition or the sensor self-check condition. (4WAS system reactivates automatically if the heavy load condition and the self-check condition are resolved.) 4WAS warning lamp stays OFF in the protection function mode.