I wanted to thank everyone who responded and let anyone looking on this site know what the issue was so they could repair themselves. The 4 runner 1999 is notorious for having the trailer light converter go out. Located in the bed behind the drivers side brake light assembly it's not too difficult to get to. Toyota stopped making the part and switched to a different system apparently for the factory set up. Napa Auto parts here in the NW is the only place we could find that had a similar plug assembly without having to put in generic and rewire. Thanks again
Thursday, June 26th, 2014 AT 7:17 AM