I decided to fix my car after car mechanic gave up... The backlight was blinking even the car was locked and turned off in the parking. Took me 4 days to figure it out. What I realised is that we are pushing tech to places where tech and electronics shouldn't be... My next car will be 1972 ford c, it doesn't have any of these modern problems.

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    Just add a roll cage for safety ☺️
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    this looks bad... Why was it wet all the time? IMO ICs in cars is not the problem - it's the lack of proper protection that causes most of the problems.

    So what has caused this corrosion? And why wasn't it prevented?
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    @netikras it looks like half the pins are just totally disconnected or outright fucking gone, that's not just water
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    That appears to be just a couple of fets in a package - nothing fancy. Your 70s car electronics would have just as many issues (or more) if that much corrosion happened.
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    I assume that it got 12v, while this circuit can handle max 5v and they just burned out. It have some custom blooethoot headset, so someone messed around the wires.
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    Someone screwed up the conformal coating there...
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    Old cars only add more problems.

    Whole it's true that tech is a problem in modern cars, especially security wise, it's not a fix to buy an old car.

    Get a bike. :-P (joking. But yeah, "both" sides are bad. Unless you're a very good mechanic and can replace car parts like Motor etc)
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    @IntrusionCM Unfortunately, I am.. :D
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    @Parzi Half of the leg is at the chip, another half - at the PCB. And there is a gap in the middle with uneven edges.

    Other pins seem to be thinner in the middle.

    None of the pins is shiny and smooth - all to them are covered with darker spots, have an uneven surface.

    All the signs point to corrosion. And AFAIK humidity is the usual cause of corrosion in cars.

    What else could have caused this?
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    @netikras various chemicals, acid battery fumes, oil, the like. Shit gets sprayed out sometimes, even if it's too fine or too low of a quantity to see, and some of that shit is just straight up gaseous too...
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    @Parzi I agree. Though I don't think these are any more likely than the classics - humidity
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    @netikras No, but they can be the issue. It just looks awful greasy and specifically-corroded for only humidity, especially if problems only started now.
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    @blindXfish OK, that changes everything.

    I'll get nostalgia, but a 1970 car is not good for the environment at all
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    @netikras in countries where they get snow and ice on the roads in winter - salt ... which is often mixed in with the anti-skid grit they disperse.
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    IMO The only place I'd expect salt to cause corrosion is outside of the car. More specifically - sides of the vehicle. Any other places reached by salt are accessible to humidity. If you hydro-isolate a part of the car water (and salt along with it) will not be able to reach it.

    [suspension gets salt because wheels splash it on along with the melted snow/ice, i.e. water]

    Take the headlights for an instance. Or tail lights.. They all have gaskets on their lids. Unless the gasket is damaged (or any part of the head/tail light) you should not see any indications of corrosion once you open it up.
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