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generic alarm sensor connectionPrinted From: the12volt.comForum Name: Car Security and Convenience Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc. URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=119418 Printed Date: May 10, 2025 at 3:14 PM Topic: generic alarm sensor connection Posted By: trevors Subject: generic alarm sensor connection Date Posted: January 17, 2010 at 5:17 PM I've a 2008 Scion xB with Scion Security and Glass Break Sensor and a 1990 GSX Eclipse with OE security and no extra sensors. In neither can I identify a dedicated trigger port for adding sensors. Am I right in thinking the appropriate technique would be to tap into a door open switch wire (probably driver's), so that if the system is already armed, the alarm will go off (otherwise the signal would be ignored)? Also, in order to increase security reasonably for both vehicles, what would make sense for each: Tilt sensors? Impact sensors? (Glass break sensor for the Eclipse ?) Thanks for any insights :) -- Trevor PS. I've noticed the xB glass break sensor also triggers if anything strikes the car body -- doesn't have to be hard enough to cause damage. Replies: Posted By: Mike M2 Date Posted: January 17, 2010 at 5:49 PM The problem with using a door trigger is the interior light will come on when it is triggered. How about a hood pin, is there one?
------------- Mike M2 Tech Manager CS Dealer Services Posted By: trevors Date Posted: January 17, 2010 at 6:56 PM Great idea -- the Eclipse definitely has a hood release sensor and the Scion xB almost certainly does also, so if the hood is released with the alarm armed, the alarm will fire. I'll have to study the schematics to identify the wire. (Hopefully not a CAN connection on the Scion :(). Thanks very much. Any quick thoughts on what sensors are valuable to have these days (tilt? impact? glass break for the Eclipse? other?) Posted By: Mike M2 Date Posted: January 17, 2010 at 8:33 PM Try the 507 by DEI, it's a tilt sensor that actually works well.... ------------- Mike M2 Tech Manager CS Dealer Services Posted By: trevors Date Posted: January 17, 2010 at 9:03 PM Thanks much -- I'll look into it :)!
Posted By: trevors Date Posted: January 17, 2010 at 9:10 PM PS. Sorry to bug you yet again, but is there a good shock or glass break sensor I should also look at? According to DEI, their tilt sensor is a good complement to one.
Posted By: trevors Date Posted: January 22, 2010 at 9:03 PM Mike M2 wrote: It turns out the 2008 xB doesn't have hood release detection. So, I guess I need to install a pin switch somewhere. However, that leaves me without the alarm trigger wire. The car does have a Scion Glass Break sensor (GBS ecu), but since neither that nor the Scion Security ECU (TVIP model RS2300 Plus) are standard equipment, I don't know what the Security ECU trigger wire is. Can anybody give me a hand? Also, I've identified a number of DEI Sensors I could install: DEI-504D Shock Sensor Any suggestions as to my best bets among them? Here's the Audiovox info: #513391: 2008 SCION XB 4DR SUV Posted By: Mike M2 Date Posted: January 23, 2010 at 10:30 AM Well i'm gonna guess the Scion security is not a factory installed item but a dealer installed item since they are known for buying a basic car and adding accessories when you buy it. This means some mechanic took a plug in alarm system and added it to the car so the unit is actually individual of other car components like the BCM. If this is so, somewhere there is a trigger wire on the security system that comes from the cars triggers. I would suggest a trip to your local Scion dealer and see if you can get a scematic of this alarm. There might actually be a separate input just for your sensors. ------------- Mike M2 Tech Manager CS Dealer Services Posted By: sneakycyber Date Posted: January 23, 2010 at 1:21 PM Have you tried Alldata DIY I have gotten all of the wiring schematics for my vehicles from there (the cars I own). If the alarm is a factory option it should be included in the wiring schematics for the vehicle. I currently have a 2002 Kia optima with a factory alarm system, I used my hood pin switch to add an aditional Shock sensor and an audio sensor. The major draw back to using the factory alarm is they generally don't have dual stages. Just google Alldata DIY and you can find the website.
------------- Posted By: trevors Date Posted: January 23, 2010 at 2:30 PM Actually, "Mike M2"'s description is correct. The Scion xB only has one factory installed option, that being manual Vs automatic transmission. Everything else is defined as an accessory. The set of vehicle schematics retrieved from Toyota's Tech website don't appear to cover any of the accessories -- I've had my nose pressed to them. However, I'll gladly investigate "Alldata DIY" -- thanks for the link :). Mike M2 wrote: Yes, the accessories can either be installed by the dealership or purchased separately and installled later. I purchased later and installed it myself. Scion has detailed installation instructions that can be separately downloaded from certain dealer sites, but no shematic information is included either via the kit or download. I'll try checking with the dealer and emailing Scion to see if they can tell me anything at all about extending the Scion System (eg. lack of hood release detection seems a significant miss). The Scion Security ECU inserts into the existing vehicle wiring using what Toyota calls "wire-to-wire" connections -- it opens an existing vehicle harness connection and plugs into both sides -- it has four of them (2pin, 8pin, 14pin, 18pin). Naturally, the instructions only identify the connectors by location, not by factory designation -- so I can't readily cross-reference them to the vehicle schematics. So, thanks, I'll see what I can find out. If you fellows have any thoughts regarding the DEI sensors I listed, I'd really appreciate your input on what might make sense (or if I should be considering something not listed) -- I've zero personal experience with vehicle security. I've two cars under consideration, and the Eclipse should be much easier since I've detailed security system schematics and a hood pin (I installed and integrated the keyless-entry myself). Here they are again: DEI-504D Shock Sensor Posted By: Mike M2 Date Posted: January 23, 2010 at 2:44 PM The 508D is neat but does false a lot. If it were mine i'd get the tilt and the shock and be done with it. You might try a search for an RS3200 Toyota alarm. My bet is they are the same as the Scion unit. Hey this might help some... https://rav4world.com/forums/viewtopic.php?t=2901 ------------- Mike M2 Tech Manager CS Dealer Services Posted By: trevors Date Posted: January 23, 2010 at 7:59 PM You're right, it's the RS3200+, I foolishly reversed the first digits when typing :(! Went to the dealer and the parts person was amazingly patient and actually found the schematic for the security system (TVIP and GBS). It's an EWD PDF file entitled "TVIP V5 Scion Security" ln the Toyota technical database: I took 1600x1200 photos of the two sheets she gave me and uploaded them to Photobucket.com as 1MB files (way too large, but I didn't want to lose resolution given the non-pro size options). I pre-printed them and they are legible, so I hope somebody else can also print and read them OK. Here they are: https://i8.photobucket.com/albums/a33/TrevorSt/xB2008RS3200Plus_1.jpg https://i8.photobucket.com/albums/a33/TrevorSt/xB2008RS3200Plus_2.jpg It appears the Blue wire at TVIPpin3 and GBSpin5 is the signal (process of elimination). +12 is White at TVIPpin11 and GBSpin2. Ground is WHITE/ Black at TVIpin16 and GBSpin6. Ignition On is Black at TVIPpin8 and GBSpin3. The Security Status LED is Brown at TVIPpin29. The other Black (GBSpin7) and White (GBSpin8) are the glass break microphone. So, here's hoping Blue plus diodes does the trick :) -- will have to test a little. Thanks very much for the assistance with the hookup and sensor choice. Hope the linked photos are useful. |
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