Sometimes air conditioning problems in an automobile can be an easy fix, even for those of us who know nothing about cars. Before making a costly and time-consuming trip to the dealer or a mechanic, try troubleshooting the problem.
Tools Used: Tools, Flashlight
Troubleshoot Air Conditioning
See if the problem is as simple as a blown fuse. If the temperature controls on the dashboard seem to work fine but have no effect on the air temperature, then this is probably the cause. The fuse box in a Tundra is located below and to the left of the steering wheel by the brake.
Listen for the blower motor sound to increase when turned to high and decrease when turned low.