Tundra woes on 2006 Toyota Tundra

Greetings! Started the truck the other morning and discovered no instrument pannel lights. Upon further inspection no tail lights or license plate lights. No running(parking lights) in front of vehicle. Headlights and brake lights fully functional. Turn signals fully functional. Broke out the owners manual narrowed it down to a possible 15 A fuze. Replaced fuze no luck! Broke out the testlight tested circuits that included items I do not currently have power on, even pulled tailight and checked it. Brakes yes, running lights no with test light. Thinking it may the be the turn signal lever, yet the headlights work! Any ideas would be greatly appreciated!

Thanks! JB

Asked by for the 2006 Toyota Tundra
Have you power (12V) @ the 15 amp fuse marked "Tail". All the tail lights get power at the integration relay from the green wire. It should have power when the tail lights are turned on. If it has power at the integration relay on the green wire the light switch is good and the break in the circuit is from there back. If the is no power on green wire at integration relay on the green wire, check that the red/black wire at integration relay goes to ground when the tail lights are turned on. It is the light switch that provides ground to the integration relay. This tail light relay is left side of steering column
There is a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
Thank you Mr. Mannion! I am going to try the things you have posted here this weekend. I'll let you know of the outcome.

Sincerly, JB
Truck is Good to go!!! Thanks alot! It was the switch. $45.00 fix!

Sincerly JB