I have viewed Telematics data and Service tool data with CanKing and the CG150.
All you have to do is in the CAN Controller window under the Bus Parameters tab, un-tick "Exclusive" and tick "No init access" This then does not configure the CG150 to communicate but relies on the main program wether it's the Service Tool, or the Telematics configurator. The catch here is you won't see anything until the service tool or Telematics configurator configures the CG150 for communication.
With this method you still can send messages too
I use it all the time.