2000 Sonata - Wipers gone after snowstorm, instantly blows fuses

Discussion in 'Hyundai Sonata' started by el_deej@yahoo.com, Dec 14, 2007.

  1. Guest

    Hi guys,

    Last night we had a pretty good snowstorm here in New England...and
    about 2 miles from home my wipers gave out on me. Thought it was just
    some ice stuck under it kept it from moving all the way, so I got out
    and cleared the ice.

    Wiper arms went back up and down, then stopped working all together.

    Today I went out and tried to figure it out and saw that the fuse was
    blown. So I went out and got some new fuses and, with the car off,
    put one in.

    Turned on the car, turned on the wipers...nothing. Checked the fuse
    again and it was blown.

    Then, with the car running and the wipers Turned _Off_, changed the
    fuse again and saw it pop before it even went all the way in (with a
    nice bright arc, I may add).

    Just for kicks I cleared any extra ice around the wipers and gave it
    another go, thinking the motor was still running and, with it jammed,
    would be enough to instantly blow a fuse. Blew another one instantly.

    -------------

    I'm assuming that there is a short somewhere in the wiper system. I
    replaced the fuse with 15A mini-fuses from AutoZone, which was the
    same amperage of the original. Any idea where I should be looking for
    a short, or if there is some way of finding out what else it could be?

    Thanks

    Fred


    2000 Sonata GLS V6
     
    , Dec 14, 2007
    #1
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  2. hyundaitech Guest

    If your wipers aren't in the park position, it's possible there's ice in
    the linkage preventing it from moving. You'll need to remove the
    windshield cowl to check this.

    If there's no ice, or clearing it doesn't resolve the problem, and you
    have no other obstructions, unplug the wiper motor and try again. If the
    fuse no longer blows (key on), you'll need a new wiper motor.
     
    hyundaitech, Dec 14, 2007
    #2
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  3. Guest


    hyundaitech,

    Thanks for your response. Didn't get a chance to look at it last
    night but I went out today and took a look.

    Checked for obstructions/ice - nothing, put in a new fuse again (in
    case any ice from yesterday had just melted) and it blew instantly.

    So I took the whole assembly out of the car and put 13.8V right to the
    Red + Black wires on the motor (from a bench power supply) and the
    thing spun fine. No problem, no sign of overload on my power supply,
    just spun freely. Tested again with the linkage in place and still
    ran fine.

    Figured "great, it was just jammed and it must've cleared out", put it
    back in the car (just sitting on the engine, plugged into the
    harness), and it blew again.

    Just for kicks I put a multimeter to it and found out every wire
    shorts out with every wire in the harness - between 0.0 and 0.7 ohms
    across any two points. I'm not sure how it's wired up, I only saw the
    three wires going into the motor (Red, Black, Blue), the bridge, and
    the 2 or 3 other wires that went inside the assembly. I tested them
    at the bridge. Unfortunatly I don't have any idea how the resistance
    is supposed to be, if this has something to do with the windings in
    the motor, or if it is a sure-fire sign that something is wrong
    (either with the motor or my electronic abilities :))

    So long-story short, I'm confused. I can't quite figure out why it'll
    work fine on a bench but blow fuses instantly in the car. Any
    insight?


    Thanks again,

    Fred
     
    , Dec 15, 2007
    #3
  4. jp103 Guest

    Fred -

    Just curious did you put a fuse in without the motor plugged in and turn
    the key on? If you did and the fuse didn't blow then you might safely
    assume it is the motor. If the fuse did blow then you have a short in
    your wiring.
     
    jp103, Dec 15, 2007
    #4
  5. Guest

    jp,

    I did check it with the motor assembly unplugged from the car and the
    fuse didn't blow. Thanks for pointing that out, I had forgotten to
    mention it.

    Like I said this started during a snow-storm the other day. The
    wipers were running just fine, but there was a good amount of build-up
    under them. After about 2 hours driving in the snow, it just suddenly
    died two minutes from home and I haven't been able to get them to go
    since.

    I'm really looking forward to going to Boston tomorrow, and on the
    verge of just going to radioshack and buying a SPST switch and a fuse
    and just running a VERY mickey-mouse setup to get it running through
    then.

    Fred
     
    , Dec 15, 2007
    #5
  6. You may want to save that for Monday if the weather reports are correct.
     
    Edwin Pawlowski, Dec 15, 2007
    #6
  7. Plague Boy Guest

    <snip>

    Here's my theory: your wiper arms are misplaced and causing the
    motor to overload.

    Remove the nuts holding the wiper arms on the shafts where they
    come through the cowl and try a new fuse. If the fuse blows,
    then something is wrong with your wiper linkages under the cowl.
    If the fuse doesn't blow, turn the switch off to let the motor
    "park", and then re-attach the wiper arms in the correct "parked"
    position.

    PB
     
    Plague Boy, Dec 15, 2007
    #7
  8. billyboy24d Guest

    I had the same problem with my 05 Accent last year and it was due to
    the linkage under the cowl being iced up and frozen. I had to pull it
    in a heated garage and thaw it out. After it was thawed, I sprawed the
    whole thing with silicone spray several times to coat it fully. After
    that they worked fine and it hasn't done it again yet.
    Bill
     
    billyboy24d, Dec 17, 2007
    #8

  9. hyundaitech,

    Thanks for your response. Didn't get a chance to look at it last
    night but I went out today and took a look.

    Checked for obstructions/ice - nothing, put in a new fuse again (in
    case any ice from yesterday had just melted) and it blew instantly.

    So I took the whole assembly out of the car and put 13.8V right to the
    Red + Black wires on the motor (from a bench power supply) and the
    thing spun fine. No problem, no sign of overload on my power supply,
    just spun freely. Tested again with the linkage in place and still
    ran fine.

    Figured "great, it was just jammed and it must've cleared out", put it
    back in the car (just sitting on the engine, plugged into the
    harness), and it blew again.

    Just for kicks I put a multimeter to it and found out every wire
    shorts out with every wire in the harness - between 0.0 and 0.7 ohms
    across any two points. I'm not sure how it's wired up, I only saw the
    three wires going into the motor (Red, Black, Blue), the bridge, and
    the 2 or 3 other wires that went inside the assembly. I tested them
    at the bridge. Unfortunatly I don't have any idea how the resistance
    is supposed to be, if this has something to do with the windings in
    the motor, or if it is a sure-fire sign that something is wrong
    (either with the motor or my electronic abilities :))[/QUOTE]
    What is this "bridge" you mention??
    Take a peek at the diagram up on HMASERVICE.COM, once you sign up go
    to "Service Information", give them the model year, and engine data,
    then open up ETM -> Body Electrical System->Electronic Time & Alarm
    Control System (ETACS)->ETACS . . .Schematic
    The schematic for the wiper section is the very 1st page at the top.
    Do note that most of the 'control' of the wiper motor is via switching
    the 'ground' (negative) side of things. Pretty much as long as the
    ignition switch is ON, the wiper motor has positive applied to it (if
    the fuse don't blow). In fact, once "parked" and the wipers OFF,
    positive voltage is applied to both the 'hot' side and the "Lo" side
    of the motor.
     
    BuckerooBilly, Dec 17, 2007
    #9
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