Scorpio Alarm - Project Done

[Rainman]

Hey guys,

You may have read some other threads concerning switched power for third party accessories - like a Scorpio alarm. Here is a link to one I started - Switched Power.

So anyway, the answer is that there are some non-CANbus wire sets on the S, and the license plate light lead in the tail is a good place to tap.

Follow along if you like, I'll step you through how I successfully installed my Scorpio SR-i900 with perimeter sensor and 2-way RFID remote.

First, I took the whole tail assembly off to examine everything there.
As you can see, there are 3 connectors in the tail.





Here are the two connectors I didn't bother with - though I'll give you as much info as I can including wire colors.

The tail/stop light connector doesn't have power to it unless the brakes are on, so it's useless for an alarm that needs switched power.



I don't have a wiring diagram for the OEM Alarm connector, so it's out too.



So what was left was the lighting in the tail section.
Here ia a general view of the wiring from underneath.

[Rainman]

The plate light is the source that always has power when the ignition is on. As you can see there is a green and a brown wire. BMW (almost) always uses brown for ground. So the green wire must be the positive lead.



Here is the left side turn signal. It has the most slack in it so I could pull it out a ways from the shell. As you can see, there is another brown wire (ground) and a blue wire with a red stripe (positive).



On the right side turn signal, again, there is a brown wire for ground, and a blue wire with black stripe for its positive lead.

[Rainman]

Now we are ready to look at the connector on the bike.
We can finally see which colored wires do what.



I used the T-Tap connectors that Scorpio sent in the kit. I don't really like these, but damn it, I wanted to get out on the bike. It's clear and nearly 65-degrees out - in mid-February !!!

I tapped the green wire for switched power, and each of the blue wires for flashing of the tail lights.



Now back under the seat.

I wanted to show you that I placed the perimeter sensor on top of an electrical connector in front of the battery and next to the ABS unit. It's well below the seat level, and no metal above it to interfere. Velcro holds it in place.

The positive and negative connections for the alarm are connected via lugs to the battery. I made a home-grown negative lead (blue) to get it back to another T-Tap connector in the tail. I went the long way around the ABS and back up the right side, because there is more space to the tail on that side, AND the seat actually has a pressure pad that falls right across the center of the battery. Space is at a premium down here (actually everywhere).



Back up to the tail to show the wire maze.

I crammed all the leads to the T-Taps in the right side as well as the RFID antenna. The original OEM alarm connector was also recapped and then wire tied back under the right side rail. You can see my negative lead from the battery tapped here as well.



Tada.

Plug the power connector into the alarm - and scare the **** out of yourself.
When your heart returns to normal, Velcro the alarm to floor of the tail section, and you are done. You've even got room for your tools in the left side.



Now go ride.

[1000RR]

WOW!!! Awesome job man! Great pics and write up too!

[pinshaw]

excellent, this is great stuff, thanks for the photos

[Mack]

Very good job!

I'm going to print this stuff out and include it in my box of stuff for the dealer's mechanic to do. I'm getting the bike far away from home (400 miles) and don't want to do-it-myself in a hotel parking lot - although I guess I could. I'm making a vacation out of some loop around his place and back for the 500 mile service and release of the 9000 RPM limiter.

I need to install a Powerlet socket too and someplace which may require a hole in some plastic piece too. I'd rather them screw that up.


Mack

[sergiomala]

Originally Posted by 1000RR

WOW!!! Awesome job man! Great pics and write up too!

+1

[Glock]

Thank you for the informative post. Now, where to connect the ignition kill?

My guess the white wires that are jumped with the cap on the alarm connection?

It would be nice when Scorpio comes out with the plug-in connector for the S1 and IF they can incorporate the factory LED flashing. I will probably eventually be ditching my OE alarm for the Scorpio, mainly for the proximity sensor, but also for more trunk space.

Thank you again for the informative post and pics.

BTW, let us know if you encounter any glitches like the dash telling you to replace an indictor bulb or whatever. I think the bike senses for burned out bulbs like their cars do...

[Rainman]

Thanks guys, my pleasure.

I love to figure out what works and how, so I took the time to investigate thoroughly before starting. It cost me a couple of rare and warm sunny days, but that's what the other 3 bikes are good for.

Mack - I need to install a Powerlet socket too

I might have to look into that as well, but hesitating for now.

Glock - Now, where to connect the ignition kill?

No need for the ignition kill from Scorpio. Forget that. The BMW electronic key and ignition antenna take care of that. Don't think you can start this puppy without your key. Also, if you arm the Scorpio with the proximity sensor active, it should go off like crazy if somebody gets too close - like sits on it, and the remote isn't close to the bike.

[viperclaw]

I got a couple questions for you Rainman about the Scorpio alarm.

1) You can set it to manual arming correct. Does it revert to auto arm when you do arm it or does it remain manual arming.

2) If some one attempts to remove the alarm with the fob nowhere near--they disconnect the power leads--does the alarm go off?

3) How do you know if the battery is getting low in the fob? Do you have the simple one or the one with the paging features. I was thinking of getting the simple one.

Great how to and very nice detailed pictures!!


What's your next project?