Originally Posted by 10civic
No the OEM button does not come with a relay. I just bought one from my local honda dealership and cannot figure out the wiring for it. Ive looked at a ton of wiring diy's but cannot find one that works. I have a 96 integra, and am really really pissed right now. If i figure out the wiring i will for sure let you know
1. Figure where ya wanna put it. Make sure there is enough room behind it. I put mine here:
2. Make a template-like this:
Then dremel it out (took like 2 minutes).
3. Now you need to decide whether you want to run 1 wire or 3 thru the firewall as this determines whether you put the relay in the engine bay or passenger compartment. I opted with engine bay so I only had to run 1 wire thru the firewall and it's a lot easier to get to that fuse box.
4. Go to the BACK of the engine fuse box and find a wire that only has power when the key is in the ON(II) position. You can check this by back probing the BACK of the fuse box with a test light while your buddy turns the ignition ON and OFF. This is important as you don't want your starter going when the engine won't start.
5. Disconnect the wires on the battery.
*Note: Use same gauge wire as wires on the relay. If your relay has no wires and your using connectors use same gauge wire as starter wire on the one side and same gauge wire as the start switch on that side.
6. Splice into that wire you found in the BACK of the fuse box and run it to 85 on the relay.
7.Run a wire from 86 on the relay to this pin:
in the back of the start switch.
8. Run a wire from this pin:
to ground. You can make your own or I just used the cigarette lighter ground.
9. Find your starter. Splice into the positive wire right before it hits the starter. Run that wire to 87 on the relay.
10. Run a wire w/inline fuse from batt positive to 30 on the relay.
11. Connect your battery cables, turn your ignition to ON(II) then push the start button. Remember, if you have a standard, you have to push your clutch in to start also. If it doesn't work you wired it wrong.
12. If it does work, heat shrink or tape all connections. I even wrapped the relay with like 3 layers of tape. lol
85- from fuse box
86- to pin 1 on start switch
pin 2- to ground
87- to starter
30- from batt positive