How do you Replace fan belt for Toyota vitz 2004 model?

To replace the fan belt on a 2004 Toyota Vitz, first, ensure the engine is off and cool. Loosen the tensioner pulley by turning the adjusting bolt counterclockwise, then slide off the old belt. Route the new belt according to the diagram typically found on the engine bay, ensuring proper alignment. Finally, re-tighten the tensioner pulley and check the belt's tension before starting the engine.