92-95 Kill Switch

[simplegreen]

writtin by: C.J. Beck
from: civic.vtec.net

Install an Ignition Kill Switch
If you're like me, you are always looking for ways to make your car safer from theft. One way I came up with is the ignition kill switch.

I first thought of the idea after finding out on the HONDA-L listserv group that it is possible to render your car unstartable simply by pulling a fuse out of your underhood fusebox (specifically the PGM-FI fuse). Well, pulling a fuse to me is the same as opening a circuit, so I wondered why a switch couldn't be used instead of pulling a fuse. In short, after consulting my service manual's wiring diagrams, I was able to deduce that the wire that runs the fuse is one of the wires that connects to the PGM-FI main relay under the left side of the dash, near the fusebox.

It should be noted at this point that due to the nature of the wiring involved, and your skill at wiring, I cannot take any responsibility for any damage or injury caused by this modification. Be very careful with your wiring, as if the power is turned off to the PGM-FI main relay while the vehicle is in motion (i.e. due to a poor wire connection or bad switch), the engine will die, and with that comes the loss in braking power and the loss of power steering. So, make sure you do a very good job with all your connections, buy a high-quality switch, and you shouldn't experience any problems... I haven't.

The first hurdle to overcome is locating the PGM-FI main relay. It is found near the underdash fusebox, nearer to the outside of the car (described by the service menual as being located "behind hood opener"). Once this has been found, you will need to find the correct wire to insert the switch into. This wire is colored yellow with a white stripe, and the connector that it runs into (connecting with the relay) has seven cavities. Cut the wire (make sure the battery is unplugged first), and then attach a long enough wire to both ends so that you can mount the switch in a hidden location. I will not disclose the location I used, but just make sure that it is both easily accessible and well hidden, and mount the switch there.