So, i finally got my car down to a Nissan dealership and plugged into a Console II. (for those just joining us i have had an issue with the 4WD light staying on) The code that was spat out was C1206 which is the 4WD motor. So the issue is either with the motor its self, which is attached to the transfer case, or the wiring some where, which is a possibility as there was some other alterations to the cabling.
Mike.