add-ons to factory alarm

[A/V1]

Ok. I know a lot of people like to have the added security that aftermarket alarms offer, but either don't want to mess with having one installed or don't want to install it themselves, and / or don't want to cough up the big bucks for the better ones.

Well, I found that you can add any glass break sensor or shock sensor to our OEM alarms. Basically, any sensor that has a ground output can be connected. Simply connect the power & ground to the sensor, then connect the output lead to pin 11 of your theft deterrent ECU (looking at the wire side and the connector release tab on top, the top row, 10th over from the left).
I took a pin from a connector on a wire harness I got from a junk yard, and plugged it in for perfect contact.

Others may already know about this, but I've never heard this before, so I thought I'd post so everybody will know. I tried it out, and it works great!

Happy alarm modding!

 

[riceandpho]

u have to know how much current it can take, if its too much to handel it can fry it, first it will start backfeeding like a loose connection, then it wont work anymore, just gota be careful tho.

 

[A/V1]

You're joking right R&P? I'm not talking about powering the sensor (or grounding it here). There is NO concern about current flow with this. This is simply for the sensor TRIGGER. This is a ground supplied by the sensor - FROM the sensor - which could be through a solid state device, relay, or even a switch (ie, pressure switch - for example: in your seat cushion or under the floor mat), which provides a path from pin 11 to ground.

Pin 11 on the theft deterrent ECU is originally intended for the add-on Toyota glass-break sensor. However, what many people may not understand is that a ground trigger is the same whether it comes from a glass break sensor, or a shock sensor, or any other sensor which may be designed with a negative output. There will be no more than AT MOST a few milli-amps current to simply read that there is a trigger, and that the alarm should then sound. Nothing will get fried other than the chicken dinners at KFC. :bravo:

You will not be powering anything from this. No LED, no actuator, no motor, no siren - nothing. The Toyota GBS isn't going to be ANY better than a DEI GBS, or many other brands quite frankly. I'm simply letting others know what all they can do with their OEM alarms.

Again, some of the sensors you can connect can include:
Shock sensor
pinswitches
Tilt/motion sensor
Dual radar sensor
Ultrasonic interior sensor
Glass break sensor
Magnetic sensor (for center console or glove box)
closed loop sensor (great for protecting your spare tire!)
contact pressure sensors
slim-jim sensor!

If you do use more than one sensor, diode isolate the trigger output from each sensor.

 

[riceandpho]

Very good info u posted, i think i got the it confused with ground when armed, my mistake.

 

[ran]

Great idea, wondered about adding a tilt/motion sensor.

 

[A/V1]

Very good info u posted, i think i got the it confused with ground when armed, my mistake.

I actually just re-read my original post and realised it could have been a bit more clear. My bad. I was just so excited about my findings! LOL. I think it's great that we can add different sensors to our OEM alarm.

:banana:

 

[riceandpho]

i think its alot cheaper to have additional sensor added to the aftermarket alarm installation, u might spend under 100 for additional sensors, but with aftermarket u can do alot more.

 

[A/V1]

I don't see how it would be cheaper to get sensors for an aftermarket alarm versus your OEM alarm since you can use the same sensors for either.
I do agree that you generally have more options with an aftermarket alarm - especially having outputs for remote start, two-way, etc - unlike the OEM.

But that wasn't the point of my original post. I was simply pointing out that those who choose for whatever reason not to add an aftermarket alarm to their rigs now have more options for their OEMs.
I don't think many of us realised we could do any of this with our OEM alarms.
I sure didn't! :frog:

 

[rgcary]

You're joking right R&P? I'm not talking about powering the sensor (or grounding it here). There is NO concern about current flow with this. This is simply for the sensor TRIGGER. This is a ground supplied by the sensor - FROM the sensor - which could be through a solid state device, relay, or even a switch (ie, pressure switch - for example: in your seat cushion or under the floor mat), which provides a path from pin 11 to ground.

Pin 11 on the theft deterrent ECU is originally intended for the add-on Toyota glass-break sensor. However, what many people may not understand is that a ground trigger is the same whether it comes from a glass break sensor, or a shock sensor, or any other sensor which may be designed with a negative output. There will be no more than AT MOST a few milli-amps current to simply read that there is a trigger, and that the alarm should then sound. Nothing will get fried other than the chicken dinners at KFC. :bravo:

You will not be powering anything from this. No LED, no actuator, no motor, no siren - nothing. The Toyota GBS isn't going to be ANY better than a DEI GBS, or many other brands quite frankly. I'm simply letting others know what all they can do with their OEM alarms.

Again, some of the sensors you can connect can include:
Shock sensor
pinswitches
Tilt/motion sensor
Dual radar sensor
Ultrasonic interior sensor
Glass break sensor
Magnetic sensor (for center console or glove box)
closed loop sensor (great for protecting your spare tire!)
contact pressure sensors
slim-jim sensor!

If you do use more than one sensor, diode isolate the trigger output from each sensor.

Where should you install the Toyota glass-break sensor in the vehicle and where is the alarm located so I can get to the pin you mentioned?

 

[Toyoter]

Where should you install the Toyota glass-break sensor in the vehicle and where is the alarm located so I can get to the pin you mentioned?

I apologize for bumping this oldie but the OP had posted part of the answer to this elsewhere and I wanted to link to it for future searchers.

 

[A/V1]

I apologize for bumping this oldie but the OP had posted part of the answer to this elsewhere and I wanted to link to it for future searchers.

Thanks Toyoter! And it should be noted that the picture referenced is upside down. The module is located behind and ABOVE the glovebox. The Toyota bulletin which covers the install of the sensor has the installer install it on the passenger side trim - cover piece that is below the glovebox. That doesn't necessarily mean that is the ONLY place it can go.

Here's the pdf for the GBS install...

View attachment r131tvip.pdf

 

[rgcary]

I apologize for bumping this oldie but the OP had posted part of the answer to this elsewhere and I wanted to link to it for future searchers.

This is how I did mine. See the link below.

http://www.toyotapart.com/08586-3D892.pdf