Re: [T3] how do I test a wiper motor out of the car?

[Jim Adney <jadney@vwtype3.org>]

On 8 Sep 2006 at 14:03, David Fox wrote:

> I was wondering if someone can tell me how to test a
> windshield wiper motor that is not in a car now? 
> I see 4 wires comming out of the wiper harness. I am
> not sure wich ones to connect to a battery and I do
> not want to ruin this unit.
> It is a 12 volt motor.

First off, be VERY careful. With wiper motors there is always a 
chance that the motor will start up unexpectedly and take off a 
finger. With the gearing, it's got LOTS of torque and once started 
it's unstoppable. This is a serious warning; don't take it lightly.

Refer to your Bentley. There will be one wire to ground, one wire to 
the always hot, and then one of the other wires gets connected to the 
hot by the wiper switch. Which one depends on which speed you want to 
engage.

-- 
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Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
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