Hello, I can not say if you have a wiring problem between alternator and light but will confirm 100% that the light has to work for th alternator to kick in and charge. the light is part of the "power" styetem to the internal regulatr to activate "volt sense". I pu the diagram below and you will see the bulb in the circuit and the volt sense at alternator. A burned out bulb can allow the alternator not to work.
Sorry, If a question is a 2-3 part qestion about same problem, we all usually help the customer. in your case, it got late and i logged off last night and did not see your reply till this AM. If i rememebr correctly, you can get to the bulb after the top of dash is off. Pulling the top off is one step to pull the cluster out to get to bulb. Directions are below. You may get top off only and reach to bulb from behind cluster, if not, you will have to pull the cluster out which after top is off, there are 4 screws. There just is not more info to send as far as pics etc due to gae of car. this is the best i have onhand
Thanks for getting back to me and sending the schematics on changing the idiot light. Getting at the light is quite involved so I have had the car towed to a Auto electric repair shop to have the kuight fixed so the alternator will charge again, I have an issue with too fast of an idle and will get back to you another time to see what suggestions you have for that problem.
Thanks for your help