Since I no longer have a rear wiper I am trying to use the switch for another purpose. I would like to put another wire in place of the wire that would go back to the wiper to power someting else. I have been sitting in the car for the part 45 min with the test light trying to find out which wire sends the signal to the wiper to turn on. I have this diagram of the system, but cant seam to figure it out.



From this I would assume it is the green/white wire that carries the signal back to the rear wiper, however my test light thinks elsewise. Can anyone help me out a bit on this?

 

ok grn/wht has power when key is on. but its not the control wire
grn wire is the control wire for the wiper motor, but it controls the ground.
blu then blu/blk is the control wire for the washer motor.( water pump for wahser fluid)

 

Wtf are you making these days?!?

 

the green white feeds to the wiper switch on the steering column. the blu/black then runs from teh switch to the rear wiper motor. look at the diagram.

there is a parallel circuit so that when the wiper is on or off, theres a third power on signal that indicates if the blade should be wiping or stopping to squirt fluid. Ignore the squiting of the fluid part.

if you are looking for the wire that connects power/signal to the wiper motor, its the grn/black wire. (easy find in picture.)

if you are looking to do something in the from the front section of the car, it would be both green/white and green/black. because the two run in parallel as a circuit, if you dont stop both, then you have a partial circuit. (dead?)

the upper right section of the picture you placed looks like its just a "what to do" if the wiper is on, but squirter is off. (grounds out any feed to the motor if off off)

if the switch is on, then its the opposite. it powers through.

Rob, give me a call if you have a question, i can see whats going on here, but i better not say anything on such a public forum

the ONLY thing that still isnt clear to me to the ghettofied diagram is where the power +| is feeding from in the circuit. i'm assuming that its from where it says "hot in or not" next to the fuse...but that may be a huge assumption, because i dont see any resistors/capacitors or anything for that motor.