Hi Roger,
You are correct that the connection to terminal 5 will only give a 2/3rd wipe but the arch of the wipers is sufficient to completely clear the driver’s view but not all of the passenger’s side of the windscreen.
To operate the wipers via the toggle switch, you have to give the switch a reasonably quick press. The reason for this is if the press is too quick the wipers will move slightly further into park position and not travel across the screen.
Irrespective of whether the wipers have been operated via the main switch or the toggle switch in any sequence, operating the toggle switch will always move the wipers further to the park position, albeit only by a fraction before moving across the screen.
When I initially checked if Thomas’s proposal would work on my 410, I used a test wire with a 5amp inline fuse just in case the 410 was different to the 411. I decided to keep the 5amp inline fuse in the final wiring as a safety measure.
All in all, I am very pleased with the performance of the addition and I still have the option of using the main on/off switch for a single wipe if required but if you can see an alternative sequence for wiring the momentary switch into the circuit, I will be happy to try it out, as it’s a very simple procedure to swap the wires around near the motor.
Brian
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