R12 wipers not returning to rest automatically
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Thread: R12 wipers not returning to rest automatically

  1. #1
    Fellow Frogger! IThompson's Avatar
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    Default R12 wipers not returning to rest automatically

    On my R12 the wipers have stopped automatically returning to the rest position.
    i have to carefully time turning them off .

    any thoughts on how to fix it?

    ian

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  2. #2
    1000+ Posts renault8&10's Avatar
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    Maybe try checking the connections on the switch (assuming it’s the dash mount type not a stalk), or change the switch itself?
    KB


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    COL
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    I have never had any problems with R12 wiper motors, but I would look for broken wires or bad connections at the wiper switch and at the motor.

    I would try another wiper switch first and see if that fixes the problem as it is the easiest part to change.

    If all is good there it could be the wiper contacts that are in the gearbox on the end of the motor that could be the problem, these perform the self parking function along with a contact in the wiper switch.
    Regards Col

    1973 Renault R12 Station Wagon
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    Fellow Frogger! IThompson's Avatar
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    Thanks i thought it might have something to do with the wipee motor.

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    COL
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    Quote Originally Posted by IThompson View Post
    Thanks i thought it might have something to do with the wipee motor.
    If you have a spare switch try that first, could save you a lot of work and time.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
    1995 Renault Laguna V6
    2002 Renault Laguna V6
    1973 Alpine A110

    http://alpine-a110.weebly.com/

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    In the past any troubles of that sort I found it to be bad grounds and ran a new ground to the frame of the wiper motor to the body ?

    Manic GT

  7. #7
    Fellow Frogger! IThompson's Avatar
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    Thanks i will look into it.
    moving house soon so it may take a couple of weeks.

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    1000+ Posts jo proffi's Avatar
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    Quote Originally Posted by Manic GT View Post
    In the past any troubles of that sort I found it to be bad grounds and ran a new ground to the frame of the wiper motor to the body ?

    Manic GT
    This fix sounds familiar, and is easy to try.

    Jo

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    1000+ Posts schlitzaugen's Avatar
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    And that's even easier to try if you have jumper leads.
    ACHTUNG ALLES LOOKENPEEPERS

    Das computermachine is nicht fur gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen und poppencorken mit spitssparken. Ist nicht fur gewerken bei das dummkopfen. Das rubbernecken sightseeren keepen hands in das pockets-relaxen und watch das blinkenlights.

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    I dont know the wiper mechanism on the R12 but I've had this fault on mk1 R5 and a nineties Fiat Ducato. On both it was down to the wiper(sliding connector) that provides the motor with current until the parked position. On the R5 it needed some bending on the Ducato it was broken off and needed soldering.

  11. #11
    1000+ Posts REN TIN TIN's Avatar
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    It's not likely to be a faulty earth or the wiper wouldn't work on any speed.
    It could be the the sliding contact in the motor as ReidarUF mentioned.
    The wiper crankcase has grease inside and this could be fouling the contact or the contact could be work out after 45 or more years of life. If the copper tracks or contacts are work out then replacement is the only solution. Dirty/corroded contacts can be cleaned.

    Or it could be wiring related with either the terminal on the plug making bad contact or corroded or the switch could have a bad connection internally. Try substituting the switch with another one and if that doesn't work measure the voltage on the park wire.
    It should be reading battery voltage until the wipers are in the park position.

    Remember, the rocker wiper switch from the early 12's is different internally from the stalk type switch from the later types so they are not interchangeable. Likewise the wiper motors from the early and late types are nor interchangeable unless you change the terminals.

    Cheers
    RTT
    "I cannot help but notice that there is no problem between us that cannot be solved by your departure."

  12. #12
    Fellow Frogger! IThompson's Avatar
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    Thanks everyone for the advice.
    I finally got around to looking at the wipers not returning automatically. (I moved house and had a baby recently)

    I did the easy thing first and replaced the wiper switch on the steering column.
    The wipers are working fine now.

    thanks. ian
    COL and Sunroof like this.

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