The code tool is not for the CE lamp Diagnostic Module. It is a tool so you can access the other modules.
The built-in LED/SW is for the CE lamp.

*Note on tool pictoral:
On the tool , the pictoral was in response to a post for the 16 pin diagnostic box and are specific to the 16 pin.. that is why the leads have banannas on the end.. the tool is the same for the 38 pin except for the required smaller plugs.