Installing Cruise Control

Discussion in 'Prius c Accessories and Modifications' started by bonanzoo, Nov 12, 2018.

  1. bonanzoo

    bonanzoo Junior Member

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    Hello everyone,

    I attempted to install cruise control on my 2012 Prius C 1 with no luck. I followed directions and made sure everything was connected properly. Has anyone else installed cruise control and had to modify something that was not known? Also, I used two different cruise control kits. They both did not work. I will attach a link to the directions I used.

    http://www.rostra.com/manuals/250-1836_Form5350B.pdf
     
  2. Brandon Most

    Brandon Most Member

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    Two different kits certainly makes it sound like something in the car is missing. I wasn't able to do my fog lights through factory wiring because the internal relays in the fuse box weren't populated on the board. If it were me I would jump on https://techinfo.toyota.com and follow the troubleshooting guide for the factory cruise control. It will cost a few dollars, but its probably the best way to know exactly what you're missing.
     
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  3. bonanzoo

    bonanzoo Junior Member

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    Thank you!
     
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  4. Umerpk

    Umerpk Junior Member

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    Any luck?
     
  5. bonanzoo

    bonanzoo Junior Member

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    Unfortunately, no. I am going to buy a multimeter this weekend and test all the ports.
     
  6. Umerpk

    Umerpk Junior Member

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    I tried to install cruise control .Fortunately ,all the wiring was already present (HV ECU to brake switch and HV ECU to clock spring). It did not have double throw brake switch but i shorted the wires just to check.the funtionality but unfortunately it doesnt work. I can see CRUISE lamp in dashboard but it never comes ON. I dont know what is the issue.
     
  7. bonanzoo

    bonanzoo Junior Member

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    I am having the same issue. What kit are you using? I have tried after market and OEM with no luck. I’m going to try this new brand call Rostra and see what happens.
     
  8. Umerpk

    Umerpk Junior Member

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    Surprisingly mine worked. Don't know how but the guy who helped me just changed the polarity of brake switch wires. I did not understand this logic but anyhow the result is awesome. I used the aftermarket cruise control lever.
     
  9. bonanzoo

    bonanzoo Junior Member

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    I got it to work! I had faulty switch cords. They were not inserting and clicking properly.
     
  10. Umerpk

    Umerpk Junior Member

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    That's a good news
     
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