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Toyota Yaris Accessories & Modifications
I found an after market unit by Brandon Distributing (BD) that uses the cars ECM computer's built in cruise control programming (according to BD). But it has it own control head and requires breaking into the car's harness to splice onto the wiring. I do not care for that approach. BD claims dealers all over the US are installing them with good results but I am afraid Toyota might back away from their warrantee if something happens.
In reviewing the cars Service Manual it appears that everything is there (with one exception) for cruise control. The throttle is "fly by wire" meaning it is completely controlled by the computer with no mechanical link between the foot throttle controller and the engines actual throttle.....its all done electrically with a motor controlled by the ECM computer. What is missing is the control stalk with the switches for Set and Resume and Off, etc.. It seems to me that all that is necessary to get factory cruise control is to remove the steering wheel and install the factory stalk and plug it into the existing connector that is used for other functions in the steering wheel area as well. Did I miss something?
Has anyone done this themselves or had it done through a dealer?