windscreen wipers not working on maximum
 

Hi All, heading says it all really.

The intermittent is OK, the normal speed is OK but when I switch to 'full speed' they just stop. Any ideas ?

Is any power getting to the motor when you select full speed?


Assuming there's no power at the motor, looking at the schematics here, my guess would be the wash/wipe relay module, J31:
http://forum.a8parts.co.uk/attachmen...8&d=1420349196

Could just be bad contacts or a dry joint inside the relay module. If not, J31 is probably a good place to start checking voltages.

Have you checked the wiring plug on the motor? The contacts go green and fuzzy if the get damp and they aren’t well shielded again water. If not it might be the contacts inside the motor, they have little springy arms that rub on a copper disc and when they get dirty the motor can do all kinds of weird things like run slowly or not stop at all.