Wiring issue with my series 3 swb diesel

Jamesw87 · Dec 29, 2013

Good afternoon all,
Really need help, I have brought a series 3 SWB diesel but the wiring is all over the place, I have sorted most of it out but now when I turn the heater motor on the wipers go at the same time. When I turn on the wiper switch the wipers go really slow. Can any one help please

joe27979 · Dec 29, 2013

sounds like the spade connector on the heater/wiper plug have been misplaced, they are next to each other in all of your dash-sounds like wiper is getting back feed of the resistor in heater motor effectively halving it's voltage making it run slow

Blackburn · Dec 29, 2013

Check the earths at the wiper motor and the heater 1st.

Aidso · Dec 30, 2013

Second the earth or could be a short in the dash at the back of the switch.

Jamesw87 · Jan 12, 2014

Many thanks for your help still really struggling all earths look ok, joe when you say heater/wiper plug do you mean the switch? Many thanks

oxides · Jan 12, 2014

There's a good drawing of what colour wire goes where in the book - do you have a copy?

Blackburn · Jan 12, 2014

James add your location /area and maybe someone near can have a look with you.
Back of wiper motor switch
Terminal 4 should be two greens in one connector 12V from fuse.
Terminal 3 should be light green with black stripe.
Terminal 2 should be Light green with red stripe.
Terminal 1 not in use

Wiring issue with my series 3 swb diesel

Jamesw87

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joe27979

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Blackburn

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Aidso

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Jamesw87

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oxides

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Blackburn

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