Hi all, I'm new to the Highlander part of TS, but have a problem. My grandson just graduated HS and his 03 Highlander's gas gauge doesn't work at all. I don't know what engine he has but can find out. He thinks his grandpa can fix everything, but gas gauges sometime stump me. He recently had some radio work done somewhat before the problem started.
Anyone have an idea where to start trouble shooting this? I really hope it's not the sending unit. I don't have a Highlander manual, but have one for the Tundra 01-06.