I need to replace the outside mirror ECM. The dealer pulled the old, defective one as it was causing a battery drain but wanted $600 to replace it. I purchased a used one on eBay but can't see where it goes. I thought it would be obvious when I pulled the cover with the mirror position switches, but no. Can someone point me to it?

 

See this post
https://www.clublexus.com/forums/es-...l#post11057179

 

That did it. Popped off the panel, saw the free connector, snapped in the replacement ECU. Mirrors and seat memory all work. Thank you!