Hard Disc Drive
The integral hard drive for the navigation system removes the requirement of a separate navigation computer usually found in the rear luggage compartment. The IAM stores the navigation map data locally within the 30GB hard drive partition. By storing the information in this way and processing it within the IAM, navigation display, route calculation speeds and accuracy are vastly improved. Map upgrades and software now have to be loaded directly into the IAM from a DVD or USB memory device ('not applicable to Japan/Asia specification vehicles).
The map images are transmitted from the IAM to the TS via a Low Voltage Differential Signal (LVDS) link cable. Turn by turn instructions are also available, these are displayed in the IC via a medium speed CAN link between the instrument cluster and TS.
The IAM communicates on the MOST ring with the rest of the audio system. If the IAM is replaced it must be configured as a new module using an approved Land Rover diagnostic system.
Calibration of the IAM using an approved Land Rover diagnostic system enables updates to be downloaded as new technology becomes available or any fault concerns require software updates.