Well, I did a engine swap on my civic and at the same type swapped over to a domani front end.

everything has worked fine for months then one day when I turned my headlights on the wipers just came on. They would go back and forth a few times then shut off.

Well, I figured out its all associated with my driver head light. When I turn the wipers on the driver headlight dims and when the wipers quit the head light goes to its normal brightness.

now for the best part, if I get out of the car and hit the headlight it will go bright and the wipers stop..

I swapped a new bulb in and it still does it. I checked the plug and wires and they look good.

Im so confused.. Does anyone know what it could be?

Another thing that is odd is If i hold the brights on for a few then turn the headlights on like normal they wipers wont come on most of the time. This started making me think it was something ground/heat related.

 

When one circuit, [head light] has an effect on another circuit, [wipers] it is almost always due to a grounding problem, check the ground for the head light. 94

 

I'll give it ago read somewhere that someone had the same problem same year car and was told to check ground and they never posted again so maybe it fixed it.

I was also under the dash doing stuff for my swap so maybe did something.