CAN bus Fault:
The MKIII Range Rover uses the CAN bus to convey several different signals from different vehicle computers. For example the CAN bus carries the vehicle speed from the ABS computer to several other vehicle computers. This error usually means that one of the necessary CAN bus messages has timed out.
For example, if the ABS computer has gone offline and the speed signal messages are not traveling the CAN bus, the EAS will also throw a fault. The MKIII Range Rover is very interconnected. When one system fails, it can send others down into a fail safe mode or limp home mode.