2004 Toyota Tundra Ac Relay Location . Anyone with good part brand suggestion for these? The secondary air flow relay and the heater relay,located in the fuse box, have no ground. I need a detailed fusebox diagram for a 2004 nissan altima ... (Roy Zimmerman) I don't see it listed on any of the relay box lids and the only diagrams I've. The secondary air flow relay and the heater relay,located in the fuse box, have no ground. Your Toyota Tundra will be happy to know that the search for the right Center Support Bearing products you've been looking for is over! View similar cars and explore different trim configurations. Enter your vehicle info to find more parts and verify fitment. 2001 Toyota Camry Interior Fuse Box Diagram ... 76 corvette wiring diagram. Wiring Diagram 185758 ... OPEL ENGINE COOLANT - Auto Electrical Wirin...