HelloCustomer I'm Chris, a current Ford Lincoln Mercury employee.
Thanks for visiting Just Answer. I will do my very best to help you resolve your concerns
Lets get the switch and cluster out and actually check the illumination feed and check the bulbs. It may also be a printed circuit board concern on the cluster if the bulbs and power are good.
You will need a DC volt meter to do the testing. You can leave the battery connected if you choose. Most all techs including myself do. This is mentioned to prevent any possible shorts or incidental air bag explosiion which I have never heard of occuring. There are only 2 wires to check which is power in and ground for the illumination from the switch at the cluster. Yes you can reply as many times as needed before or after an accept. I am online every single evening.