Wiper Motor/Switch Wiring

Hi All,

I'm nearing the end of a complete re-wire on my series 3, and have hit a snag with the wipers (they don't work!). The wiring diagrams in the Haynes manual don't match my switch/wiring. The switch I have is this:



There are 5 wires at the motor connector (1 grounded locally), 4 of which which I've linked up to the rotary switch as follows:

- Green (Motor Power): Pin 4, spliced off to a fused Ign feed
- Red/Green (Speed 1): Pin 2
- Blue/Green (Speed 2): Pin 1
- Brown/Green (Park): Pin 3

I've worked this out by a process of deduction: with the switch in position 1, I have continuity between Pins 4 & 2. With the Switch in position 2, I have continuity between 4 & 1. At no point (even with the switch in position 0) is a connection made with pin 3.

So...I have two questions:-

1. Are the above assumptions correct?
2. In order to park the wipers, should there be continuity between Pins 4 & 3 when the rotary switch is in the '0' position?

Cheers,
Lew

View attachment Wiper motor connections.pdf
Park is provided by the green wire going to motor and through the switch
Try this drawing

Thanks very much! I searched the internet for ages yesterday, but that's spot on. Trouble is, it looks like I need a new motor!