February 25, 200817 yr Author comment_238499 No, not directly, however, indirectly it looks open, because I was able to jumper around it and make the circuit work. Link to comment https://www.classiczcars.com/forums/topic/27143-73-240z-rear-defroster/?&page=3#findComment-238499 Share on other sites More sharing options...
February 25, 200817 yr Author comment_238505 Looks like the part is no longer available. Anyone had any luck finding a source? Link to comment https://www.classiczcars.com/forums/topic/27143-73-240z-rear-defroster/?&page=3#findComment-238505 Share on other sites More sharing options...
February 25, 200817 yr comment_238523 Did you call MotorSport Auto? They have the switch in their online catalog.Other options:1. Try to rebuild the switch.2. Get a used switch.3. Get an illuminated rocker switch from Radio Shack or similar source. Link to comment https://www.classiczcars.com/forums/topic/27143-73-240z-rear-defroster/?&page=3#findComment-238523 Share on other sites More sharing options...
February 25, 200817 yr comment_238534 Rebuild the switch. It's a lot easier than it sounds. You can also swipe the guts or the switch itself from another console cover.E Link to comment https://www.classiczcars.com/forums/topic/27143-73-240z-rear-defroster/?&page=3#findComment-238534 Share on other sites More sharing options...
March 21, 200817 yr Author comment_241386 Cleaning the switch turned out to be fairly simple. The bulb case pops off the side of the relay revealing the guts. Cleaned with contact cleaner and a small brush. Works like new. Link to comment https://www.classiczcars.com/forums/topic/27143-73-240z-rear-defroster/?&page=3#findComment-241386 Share on other sites More sharing options...
July 21, 20231 yr comment_655284 Here is a 1972 240Z Series III schematic. It has been reliable for me. I have added a small map at the bottom that partially traces the path from the ignition switch to some major components. (I did a lot of work making it large to aid in distinguishing colors.)  Anything related to automatic transmission or air conditioning has been faded out. The 20A fuse for the defroster circuit is a small distance to the right of the fuse box. I've found at least one inconsistency on my car: the yellow/black leading from the windshield washer tank does NOT change color after coming through the firewall. I'm doing some stuff with battery disconnected so haven't tested that path beyond that point yet. I couldn't resist adding a pic of my baby.   1696333995_roxborough2.tif Link to comment https://www.classiczcars.com/forums/topic/27143-73-240z-rear-defroster/?&page=3#findComment-655284 Share on other sites More sharing options...
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