usoff89

iTrader: (2)

What needs to be done to bypass the neutral safety switch on my 93? I've searched and only found a FEW things but they were for the SC's. I cant find any info on the LS platform. Any help would be greatly appreciated!

I plan on eventually wiring into the clutch so it wont start without the clutch engaged but for now I just need to bypass it so she will start up and run.

usoff89

iTrader: (2)

On the SC forum a guy that did a 5spd swap said you have to just jump two wires together on the old auto trans plug for the NSS, but I'm not sure which wires or if that goes for the LS also?

k7q

iTrader: (37)

https://www.clublexus.com/forums/per...o-crank-2.html


i did this to my 92 SC400. should be the same for LS400 since i had a LS tranny in my SC. that was just temporary i solder, heat shrink and ran some wires to the clutch switch.

usoff89

iTrader: (2)

Thanks! I'll give it a shot tomorrow.

Yamae

Below are originally prepared for a JDM Celsior to show how to clean contacts for "D" electrically but you will notice that the bypass of the neutral safety switch can be done shorting pin 5 and 6.

usoff89

iTrader: (2)

Thanks Yamae for confirming this. I'm going to put the trans in tonight and fire it up tomorrow to make sure it starts up.

usoff89

iTrader: (2)

Ok just for future reference if anybody needs it. Before jumping 5 and 6 in the diagram above my car did not start. I put a 10amp fuse in 5 and 6 and she fired right up like normal. So yes all you need to do is jump the two together. I'll be cutting these and routing them up to the clutch pedal soon.

PureDrifter

iTrader: (10)

Or you can just wire it into the clutch safety switch if you're using an oem clutch pedal. (for toyota/nissan, both iirc are closed ircuit when clutch-in though I may be off).