Whats this go to?

[mk3supra]

Just finished putting my engine back all back together and I cant find where this plug goes. It comes up right beside the fuse box and comes from the body harness from the front driver inner fender. Any ideas? Its a 90 NA swapped to a turbo if it matters.

 

[jetjock]

Appears to be for the AC clutch or condenser fan relay. Mounted under the fuse box and near the battery...

 

[Victor Charlie]

Appears to be for the AC clutch or condenser fan relay. Mounted under the fuse box and near the battery...

I'm going to go out on a limb and guess it's the connector for the headlight cleaner relay.

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=119

The relay is black, mounts over right front wheel well, not all cars would have it. The connector has a light blue/yellow stripe, light blue, black, and white with black stripe wires. If it is an 89 or later body it will have connectors that serve no function if the option was not included on the car when it was new. unless you have a headlight cleaner, you can safely ignore it.