240 front wiper doesn't work

Discussion in 'Volvo 240' started by BobN, Jan 19, 2007.

  1. BobN

    BobN Guest

    I have a 1987 240 wagon. When I turn on the windshield wiper, nothing
    happens - not on any of the switch settings.

    I have checked the fuse and replaced the motor, neither was the cause.

    I put a multimeter on the connector block contacts. None showed any voltage,
    although both sets showed a decrease in resistance when the switch was on.

    Which is the cause most likely to be:

    1) the intermittent mode relay;
    2) lack of a ground somewhere;
    3) bad switch on the stalk; or
    4) something else?

    BobN, Jan 19, 2007
  2. BobN

    Mr. V Guest

    First, clean the prongs at the fuse and the fuse itself with a small
    wire brush or sandpaper, and test with a test light to rule out fuse

    Then, the check for a good ground at the wiper.

    There should be a flexible metal piece at one of the bolt points: make
    sure it is corrosion free, as well as the attaching point.

    You might run a separate ground from another point on the wiper body to
    another grounding point on the firewall.

    If that isn't it, I'd check the wiper stalk next with a VOM, to see if
    the readings change at the prods when you change stalk positions.

    Actually, the easiest is to substitute with a spare which is known to
    be good.

    Finally, substitute the relay (tucked under aluminum shield under
    carpet under driver's left foot).
    Mr. V, Jan 19, 2007
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