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VSC and other functions not working

Discussion in 'Gen 2 Prius Technical Discussion' started by Skrappi69, Apr 19, 2024.

  1. Skrappi69

    Skrappi69 Junior Member

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    I searched the form for my issue, but was unable to find anything specific to the problems I am having.

    The VSC light came on my dash. Subsequently the doors stopped responding to the key fob. Every time I started, the horn beats. The interior lights stopped working, even with the door open. Every time I turn it off and start it again the odometer and trip information display resets to zero. The radio will not power on.

    I found a thread that shows a combination of foot pedals and start button actions along with jumping ports with the paper clip and the OBD2 port. That did not work, so I tried disconnecting the auxiliary battery and let it sit overnight. It did not help either.

    Does anyone have other suggestions I could try? After scouring this form and others I have not found anything close to what I am experiencing.

    Thanks
     
  2. ChapmanF

    ChapmanF Senior Member

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    Exorcism?
     
  3. Tombukt2

    Tombukt2 Senior Member

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    And you know you're 12 volt is certainly up to the task? Just because things turn on and the remote sometimes works and the lights are acting funny generally I can be caused by voltage swings nothing behind the voltages swinging etc then of course a complete disconnect from all power for I don't know 10 minutes or something like you do to your regular computer at home you know complete power down sit and then a reboot other than that you'll be going through every circuit and every fuse looking for God knows what apparently in generation threes and what have you and newer the soy wiring is a delicacy to the rodents rodents seem to like the generation 3 and forward cars I'm in Central North Carolina where roads are well almost King and rarely hear these problems unless you're parking the car in 3 ft of grass and leaving it there for months.
     
  4. Skrappi69

    Skrappi69 Junior Member

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    @Tombukt2 it is a new OEM 12 V accessory battery. I’m going to check fuses as a Hail Mary. In hopes, I find something, anything, that could be the culprit.
     
  5. Tombukt2

    Tombukt2 Senior Member

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    Just seems like a lot of things going on at an opportune times and then not I would think all the fuses are good everything in the car is working right? For the most part seems like it's timing of things maybe off which in this model mostly computers control the timing of everything they're depending upon the 12 volt battery and that sort of thing Not really much else to it other than all those computers.
     
  6. dolj

    dolj Senior Member

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    The only useful thing a light on the dash tells you is that the associated system (VSC, in this case) has one or more codes set. So the best (and obvious) suggestion is to read the codes so you know what your car is trying to tell you.

    Given the symptoms you have stated, one issue points heavily to a problem with the continuity of power to the 12 V bus. I would first check that the terminal connections on the battery are clean and tight and that the other end of the negative cable where it connects to the car body is also clean and tight.

    You could have more than one thing going on here, but ensuring a good 12 v supply is paramount before chasing anything else down.
     
    Brian1954 likes this.
  7. Skrappi69

    Skrappi69 Junior Member

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    Thank you everybody. All sound advice. I will tackle that today and see what happens. Hopefully fingers crossed this will be a through the goal post fix