Trogdor636 Posted November 27, 2012 Share Posted November 27, 2012 Over the weekend I helped a buddy figure out why his factory alarm in his 93 would never work. The old brain was dead (swapped my known working unit in) so we went to the local Pick N Pull and found a 93 with one. Before pulling it I noticed it had a relay on it, but he bought it anyway, and it works perfect now. My question is does anybody have the same relay and why dont they all have it? It connects to the starter wires, not the main harness, but I'm curious about what it is actually for since his 93 and my 94 both didnt have it, and worked fine, but this unit has it. It has to be that way from the factory because of the way the relay is mounted to the box. Here is a bad pic (I totally forgot to take when when it was out of the truck) that shows the relay hanging off the side. Link to comment Share on other sites More sharing options...
Slartibartfast Posted November 28, 2012 Share Posted November 28, 2012 Mine doesn't, and the alarm system isn't shown in the FSM. If it connects to the starter wires, then I'd assume it's some kind of lockout. IIRC the standard alarm doesn't prevent the truck from starting, so maybe this was an optional feature? Link to comment Share on other sites More sharing options...
NissanNismoZ Posted November 28, 2012 Share Posted November 28, 2012 my 94 has the 93 sytle alarm and it has that relay. its the relay for starter kill. hope this helps :-) Link to comment Share on other sites More sharing options...
Trogdor636 Posted November 28, 2012 Author Share Posted November 28, 2012 What's weird is his 93 didn't have that relay. So if its a 93 thing then I'm guessing his brain had already been replaced. Link to comment Share on other sites More sharing options...
Slartibartfast Posted November 29, 2012 Share Posted November 29, 2012 I'm guessing his brain had already been replaced. I've suspected that about some of my friends, too. Maybe it's a dealer install vs factory install thing, like the different sunroofs. Link to comment Share on other sites More sharing options...
Trogdor636 Posted November 29, 2012 Author Share Posted November 29, 2012 To my knowledge all of the systems were dealer installed. Figured thats why they don't show up in the FSM. Link to comment Share on other sites More sharing options...
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