That I understand. I just make sure I scrape my windshield clean of ice rather then relying on my wipers to clean up the build up that can quickly accumulate when sitting. Been through enough wiper blades in other cars trying to use them without a clean windshield to not want to go through that anymore.When the windshield is really crudded up, you need to soak it before the wipers start moving or you are just grinding crud into the glass. Any delay is too much.
Looks like "103" on the resistor, so 10k Ohms, but I think the idea is the same -- you're opening one of the lines that connects the washer switch to the IWM circuit (the transistor at the lower right).I was hoping to find an easy-to-cut-trace, an easy-to-remove 0-ohm resistor is even easier!
That would be great except when it's frozen or empty... I've used good schmutz but still have had it freeze in the lines below -10F, usually after a 'warm' spell.What would be really smart is if the wipers didn't start until you released the switch. Then, for those times when you just need to mist and wipe, you'd just tap the switch; heavier gunk hold until its wet enough.
But what do I know, I just drive cars. I is not an engineer.
(Pssst, are you looking Subaru?)