Rear Wiper Intermittent Delay Timer Mod

[toy_toronto]

Originally Posted by Lil Abner

Well, I know if the "ON" pulse isn't long enough, the motor will stick. Looking at your schematic, R4 and C2 control your "ON" pulse. The equation for time is:
T(on)=0.7*R*C
R4=10K ohms, C2=100uF=0.0001F
T(on)=0.7*10,000*0.0001
T(on)=0.7 sec

The only think I can think of is replacing R4 with a resistor around 14.7K or 15K. That would give about 1 second. Or just try that equation out and see.

Hey lil'abner, thanks for your suggestions. I actually tried using both the module and simulated ON pulses by hand (shorting the wires with different delays) and the wiper arm position remained in odd positions whenever I interrupted the connection.

So you got the EWD for that switch? I'd hope it's simple, like you're saying, to just supply a ground and/or positive to one or all of those 3 little pins on the larger plug!

No, lol. I was looking at the EWD of the OEM wiper switch.


-toy