20 Most Recent 2006 Toyota Tundra - Page 6 Questions & Answers

I would probably vote for the fuses again.I don't know of anything else that three components would be connected to other than the ground circuit.They could be wired thru the key switch and are probably on a different circuit than the cig lighter.

Here are some on dash symbols.

Copy and paste and you will have a step by step guide.http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?fromSearchPage=true&pageId=0996b43f80378dd0&partName=Exhaust+Manifold&partId=0996b43f80378dd0

Yes it could be, get under it and check.