A member explained to me that it was easy to open and check the Spartan signal system. Thanks to him. My signal didn't stop ... and I had to check a small wheel in contact with the steering wheel. I did it. It seems to work well, I adjusted it and cleaned. But there is a bulb inside, and no light. I put a new one, because this was was not in good condition. No light. Then I checked if there was some positive light coming to the bulb. No positive light as it seems. I don't want to operate more on the Spartan, Better is the ennemy of G ood. But if you have an idea... I know that my Jeep had some bad work done with the P.O., no need to do worse. Images : opening, cleaning, checking... This Spartan is is very good product and idea.