Rear Wiper Intermittent Delay Timer Mod

[toy_toronto]

I managed to do some more tests today, testing proof-of-concept to demonstrate such that the module can indeed send intermittent momentary pulse signals to the rear wiper motor and variable from 3 to 30 sec.

The actual wiper timer module I'm using is this: http://store.qkits.com/moreinfo.cfm/MXA041, and the best part is the price -- it only cost $8.95

The module shipped fully assembled and ready to hook up across the low speed circuit of our Yaris hatch rear wiper motor.


Here are some pics of the unit:





View of the connectors:




Bench Testing. When 12v is applied to the device and turned on, the COM and NO connections create an intermittent "short" every time the onboard relay coil is energized.

This momentary short could simply be applied to the rear wiper stalk switch that ultimately provides the desired delay interval.





Wiring it all up. I included as much detail as I could to the images below and hoping it explains in detail where I connected each of the wires to:





Here is where I mounted the delay timer module on the dash (mounted without a knob)





Knob that I bought seperately for a different/previous project:





Fully Mounted on Dash









...and there you have, a fully working intermittent rear wiper for the hatchback



-toy