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I had someone do my harness and the plug that goes here doesnt exist on my harness. I was just wondering if the is needed. When i turn on my heater it basically blows air from the outside whatever the temp. it is outside. So im wondering if this is whats causing it. This isnt a pic of my car but you get the point.
that is your water valve so you are dead on with the heater problem being related. if you dig into the harness the other end has to be there. If you go back to your old harness off your old engine you can get the part number off that, go to a junk yard and pick one off. A lot of the connectors are the same with other toyotas
If you need heat, you can bypass that heater valve assembly. Water will circulate constantly, but as long as your blend door works, you will still have both heat and ac.
Oh, check II1 pin 2 for key on power first. If it doesn't have it, then you need to run a wire from there to pin 2 on IJ1 to get power. At any rate, IJ1 pin 2, II1 pin2, and the R-L from the VSV need to all be connected and have 12v key on power.