Cruise Control Master On/Off Switch: Notes
WARNING: This page is about a different car, the 2000 Land Rover Range Rover, 2000 Land Rover Discovery, 1999 Land Rover Range Rover, and 1999 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
TestBook or scan tool will not communicate with the cruise control ECU if the cruise control master ON/OFF switch is off.