My experiance with this turned out to be the carb/emissions, it was running rich and the computer promps the charge/brake light combo as a primitave check engine light. I spent alot of time and $$ swapping and testng alts.,and relays and regulaters all things electrical only to have a long time Toyota mechanic fix it by rebuilding the carb and replacing some vacume stuff. He told me that even though it is carbed it still has a computer that detected the rich condition and triggered the lights.
