Testing the wiper motor.

[krigter]

Hello guys.
I own a Rover P5B and trying to get it ready for the MOT (Dutch). Problems arise with the wiper motor. If I connect it with the loom (corresponding colors) it does'nt function. I don't know whether it is broken or not. So I want to test it on the workbench. Problem is that I don't know which of the cables should at least be connected Can anyone give some advice like what color should be connected to +12V and earth. I add 1 picture. There have beem some threads on the subject, but they did not help also because the added pictures are not shown.
Thanks for an answer,
Regards,
Karl Rigter


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[eightofthem (Andy)]

Hi Karl.

Try stripping the wiring protection back a little bit further, this will reveal the true colour of the original wires ( the exposed parts that are out past the cable sleeve can be hard to make out due to ageing and dirt ).
I had trouble with mine after I removed it for overhaul, I had the wiring wrong due to mistaking the colours, the wires inside the motor were like new and I found my mistake then.
I don't have a manual to hand, but a good workshop manual is a must for these cars if you don't have one. ( they are available from the club I think )
I am sure there is a fair bit on the forum regarding this issue with pictures.

Very nice job you are doing on your car, would love to see more.

[johnwp5bcoupe]

These are the correct colours

[krigter]

Ok. thanks for all the help provided. as a workaround I used a wiperunit from an MGB.
Now I will make a testbed on the workbench to find out the problem with the motor. Maybe it it has broken (burnt) wires or something like that.
I know now what the colors are and I have a good scheme provided by the club.