My ECS light is stuck in tour.
If this is your main symptom that your describing , comments as follows:
If you press the ECS button , the ECS light is supposed to change from Tour to Sport. If its not doing at least that - then something is wrong with either the ECS button, the ECS button wiring harness to the ECS controller or something is wrong with the ECS controller itself.
As JJ94tt said - if you have a bad strut , the OEM ECS controller is supposed flash both Tour and Sport together about every 30seconds.
So based on your symptoms as a I said above these are the likely problems:
(1) something is wrong with ECS button,
(2) something is wrong with the ECS button wiring harness to the ECS controller
(3) or something is wrong with the ECS controller itself.
To determine if it's (3) to see if your ECS controller has failed - then a simple way to tell that is to temporarily disconnect one of the front cap strut connectors. This will cause a fault that a good working ECS controller should detect and it should start flashing Both the Tour & Sport light. If it doesn't it's definitely the ECS controller that's the problem. If it does start flashing the Tour & Sport light - it could still be any of the three.