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2010 Gen3 Prius Steering Wheel Climate Button Problem

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Canard, Nov 11, 2024.

  1. Canard

    Canard Member

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    This is a 2010 Gen3 Toyota Prius. The steering wheel mounted climate controls (temperature up, down, and recirculating) have stopped functioning. They still illuminate the “phantom” display on the dash, but do not modify the climate settings themselves. This leads me to believe it is some kind of fault not at the steering wheel itself. What could it be?

    (before you say "clockspring", please note that the phantom display still works up on the dash, which means a signal is getting from the button on the steering wheel, to the car itself.)
     
    #1 Canard, Nov 11, 2024
    Last edited: Nov 11, 2024
  2. ChapmanF

    ChapmanF Senior Member

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    The signals that light the Touch Tracer display (when you lightly press the buttons) and the signals that work the controls (when you fully press the buttons) are carried through the "clock spring" on different wires. (The exception being TRIP and DISP, as those two wires are the ones that get repurposed in the Touch Tracer models to carry the touch info.) See this post.
     
    #2 ChapmanF, Nov 12, 2024 at 10:14 AM
    Canard likes this.
  3. Canard

    Canard Member

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    Thanks - I was forgetting that the "button press" and "lightly touching a button" are two completely different functions.

    I guess I am lucky that it is a redundant signal (I can still modify the climate controls obviously on the console), and not something like the TRIP or DISP functions, where there is no secondary button...
     
    #3 Canard, Nov 13, 2024 at 10:05 AM
    Last edited: Nov 13, 2024 at 10:16 AM
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