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 Post subject: 12AUW Wiper Motor Wiring
PostPosted: Fri Sep 25, 2020 6:21 pm 
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1275cc
1275cc
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Joined: Fri May 02, 2008 3:07 pm
Posts: 5071
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I came across a few discrepancies between the workshop manuals, factory drawings and what was actually fitted to a number of original cars so I have done up a cheat sheet that has the different combinations of the 12AUW Wiper Systems used. Hopefully it is of use to someone. If your car is unrestored and different to what I have then please share.

From what I can work out there are at least 4 styles –
1. Single speed wiper motor fitted to the late MK1 range from April 1968
2. Single speed wiper motor fitted to the MK2 Range from March 1969.
3. 2 Speed wiper motor fitted to the Police MK2 Cooper S from August 1970.
4. 2 Speed wiper motor fitted to the Clubman and Leyland Range from June 1971.

Attachment:
12AUW-WIPER-MOTOR-WIRING-ALL-MODELS (Latest).jpg


Attachment:
2A9129 Wiper Switch Single Speed.jpg


Attachment:
BHA4786 2 Speed Wiper Switch - Mk2 Police Spec.jpg


Attachment:
13H6444 Wiper Switch Wiring.jpg


Some of the differences I have found between actual cars and the wiring diagrams/drawings are as follows
1. For the MK2 Range Wiring Diagrams - The “Green / Yellow” wire should be “Red / Light Green”
2. For the MK2 S 2 Speed Upgrade Factory Drawing – The “Green / Blue” wire should be “Blue / Light Green”
3. For the Clubman Leyland Range Wiring Diagrams - The colours are back to front for the “Black / Green” wire and the “Blue / Light Green” wire.


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