DTC C1633: 4WAS Front Control Unit: Description
- Each sensor signal controls 4WAS front actuator.
- The fail-safe functions stops the rear wheel angle function (the front wheel is the steering wheel cutting angle) when the electric components and the mechanical components are malfunctioning.
- The protection function stops 4WAS system temporarily when:
- 4WAS system continues being high load/overheat condition.
- The input signal is not transmitted to 4WAS front control unit.
- 4WAS front control unit and 4WAS main control unit control the 4WAS system by 4WAS communication line to optimize control.