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PostPosted: Fri Nov 01, 2019 9:03 am 
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One for the brains trust...

I'm trying to hook up my 2 speed wiper motor but am getting nowhere. I've followed the how to guide but it hasn't helped.
I think I may be missing a wire....and my sanity

Here is what I have:

At the wiper, 4 wires: Black, Red/Green, Green, Black/Green.
At the switch, Black, Red/Green, Black/Green.

Switch is definitely a 2 speed switch (part numbers are 35927/P94317) and has 6 terminals numbered 1,2,4,6,7,8.

When I hook it up as per the how to guide for 2 speed wiring, all i get is a single speed in the middle switch position with no parking. Switch in bottom position turns the motor off, again no parking. I have made sure to earth the motor body to the car body securely as well.

In the how-to wiring diagram, there looks to be a 4th wire going from the switch to the motor which I seem to be missing from my loom. I tried just running a temp wire to see if I could get it working but no go.

I've tried multiple combinations of wiring as well but still no joy.

Any suggestions folks?


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PostPosted: Fri Nov 01, 2019 9:16 am 
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998cc
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Location: Holt ACT
Gambo wrote:
One for the brains trust...

I'm trying to hook up my 2 speed wiper motor but am getting nowhere. I've followed the how to guide but it hasn't helped.
I think I may be missing a wire....and my sanity

Here is what I have:

At the wiper, 4 wires: Black, Red/Green, Green, Black/Green.
At the switch, Black, Red/Green, Black/Green.

Switch is definitely a 2 speed switch (part numbers are 35927/P94317) and has 6 terminals numbered 1,2,4,6,7,8.

When I hook it up as per the how to guide for 2 speed wiring, all i get is a single speed in the middle switch position with no parking. Switch in bottom position turns the motor off, again no parking. I have made sure to earth the motor body to the car body securely as well.

In the how-to wiring diagram, there looks to be a 4th wire going from the switch to the motor which I seem to be missing from my loom. I tried just running a temp wire to see if I could get it working but no go.

I've tried multiple combinations of wiring as well but still no joy.

Any suggestions folks?


You need a Blue/Green wire from terminal 8 of the switch to the wiper motor (as shown). If you don't have one, run one.


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PostPosted: Fri Nov 01, 2019 9:22 am 
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Tried that - made no difference.....

DavidE wrote:
Gambo wrote:
One for the brains trust...

I'm trying to hook up my 2 speed wiper motor but am getting nowhere. I've followed the how to guide but it hasn't helped.
I think I may be missing a wire....and my sanity

Here is what I have:

At the wiper, 4 wires: Black, Red/Green, Green, Black/Green.
At the switch, Black, Red/Green, Black/Green.

Switch is definitely a 2 speed switch (part numbers are 35927/P94317) and has 6 terminals numbered 1,2,4,6,7,8.

When I hook it up as per the how to guide for 2 speed wiring, all i get is a single speed in the middle switch position with no parking. Switch in bottom position turns the motor off, again no parking. I have made sure to earth the motor body to the car body securely as well.

In the how-to wiring diagram, there looks to be a 4th wire going from the switch to the motor which I seem to be missing from my loom. I tried just running a temp wire to see if I could get it working but no go.

I've tried multiple combinations of wiring as well but still no joy.

Any suggestions folks?


You need a Blue/Green wire from terminal 8 of the switch to the wiper motor (as shown). If you don't have one, run one.

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PostPosted: Fri Nov 01, 2019 9:34 am 
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Location: near Baulkham Hills, NSW
Are the 3 copper fingers making good contact with the slip ring underneath?
Is the slip ring corroded at all?

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PostPosted: Fri Nov 01, 2019 9:48 am 
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drmini in aust wrote:
Are the 3 copper fingers making good contact with the slip ring underneath?
Is the slip ring corroded at all?



New stainless ring installed (thanks Convertible Mini) and the fingers seem to be making good contact.

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PostPosted: Fri Nov 01, 2019 10:11 am 
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Have you checked it since fitting, these fingers lead not trail, and the park one can get bent bad if the slip ring is thicker than the plastic lug. I had to chamfer the slot (slip ring from John Smidt) as it was thicker.

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PostPosted: Fri Nov 01, 2019 10:52 am 
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Will double check it this weekend, the new ring seemed to fit the drive gear OK though.

Bloody frustrating, last bit of electrical work that needs to be done....

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PostPosted: Fri Nov 01, 2019 6:23 pm 
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The last 1% usually causes 99% of the stress!

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PostPosted: Fri Nov 01, 2019 6:40 pm 
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BBY755 wrote:
The last 1% usually causes 99% of the stress!


Not bloody wrong! I’m at the last 20% of the build taking 80% of the time stage. I just want to finish the damn thing.

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PostPosted: Sat Nov 02, 2019 11:19 am 
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If you want to retain the original wiper motor then you don't have much choice but to keep trying to get it to work. I too spent ages on mine and got nowhere, in the end I swapped in the UK version with the park switch from MS. Works every time now.

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PostPosted: Sat Nov 02, 2019 4:38 pm 
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After making a sacrifice to the Lucas Electrics gods, I pulled the wiper motor apart and checked/cleaned it completely.

Seems to have done the trick as the bloody thing works now.... I did have to add a wire from switch pin 8 to the motor, but I’ve got 2 speeds and self parking!

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PostPosted: Sat Nov 02, 2019 5:40 pm 
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Good to hear it's sorted. :)
Maybe a brush was sticking in its holder.

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PostPosted: Sat Nov 02, 2019 5:57 pm 
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998cc
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Location: Holt ACT
Gambo wrote:
After making a sacrifice to the Lucas Electrics gods, I pulled the wiper motor apart and checked/cleaned it completely.

Seems to have done the trick as the bloody thing works now.... I did have to add a wire from switch pin 8 to the motor, but I’ve got 2 speeds and self parking!


Of course, else you don't get the second speed.


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PostPosted: Sun Nov 03, 2019 9:17 am 
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DavidE wrote:
Gambo wrote:
After making a sacrifice to the Lucas Electrics gods, I pulled the wiper motor apart and checked/cleaned it completely.

Seems to have done the trick as the bloody thing works now.... I did have to add a wire from switch pin 8 to the motor, but I’ve got 2 speeds and self parking!


Of course, else you don't get the second speed.



When I ordered my loom I mustn’t have specified the 2 speed wiper, hence the need for the additional wire.

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