To check the soft top controller inputs using the contoller's diagnostic mode, follow this step-by-step procedure:

1) Close the soft top manually or automatically. Have the windows up. The correct position for the roll bar depends on the version of your soft top controller. Let's assume it is the raised postion. If this is incorrect, a fault code for the roll bar lowered switch will falsely appear later in the test -- no big deal.

2) Erase as many diagnostic codes from the soft top controller as possible. I suppose in your case 23 shall remain.

3) Switch off the ignition.

4) Install a jumper between sockets "1" and "3' of the "X11/12" connector located behind the passenger-side footrest.

5) Switch the ignition on.

6) Push the soft top button forward for two to four seconds as if you were trying to close the top.

7) Read out and record any diagnostic codes for the soft top controller.

8) Remove the jumper from the connector X11/12.

9) Lower the top, roll bar, and windows either manually or automatically.

10) Open the soft top compartment cover and move it to its raised position. I recommend doing this manually. Use the special Mercedes wrench to release the latches if necessary.

11) Switch the ignition off.

12) Re-install the jumper on X11/12.

13) Switch the ignition on.

14) Push the soft top button rearward for two to four seconds as if you were trying to open the top.

15) Read out and record any diagnostic codes for the soft top controller.

16) Remove the bridge.

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Now then, I have never used the procedure just described. But it is intuitive what to expect. In each of the two convertible top positions the controller compares the inputs against a reference once the top switch is pushed, and errors are reported by diagnostic code. Note that step 10 of the procedure was necessary so that the controller could verify the compartment cover raised input switches on and that the cover closed and latched inputs switch off.

Good luck. If you will post the codes you find, I will look them up for you and explain further steps.