OEM Interior Intrusion Sensor

[mciaio]

It is well known that Jeep doesn't turn on the hood pin switch for the alarm from the factory. Well, there is more, I came across a thread in the Trackhawk forums discussing an ultrasonic/tilt sensor module. It only came on export Grand Cherokees around 2018. It has 2 ultrasonic units and a gyroscope. It plugs into the CAN bus and triggers the alarm if someone or something goes in your Jeep or you try to jack it up. I find this highly desirable seeing as I have my doors and top off frequently and I am rarely out of ear-shot of it. Why this doesn't come from the factory on a Wrangler is beyond me.

Poking around in Jscan I see options for ITM module and ITM as one of the modes in the VTA settings. I figured I would spend the money and attempt to make it work. I can just sell the stuff if it doesn't work. IT WORKS!!!

Parts Needed:

ITM Module - 68329822AA
Can be bought on eBay and sometimes included in 5XU941X9AC

[1] ITM module connector 2272431-3 (Mouser)
[5] ITM module terminals 1393366-1 (Mouser) sold in 100/pack, just 1 pack needed
[1] Canbus connector 5-2138650-1 (Mouser)
[2] Canbus terminals 5-963715-1 (Mouser) sold in 100/pack, just 1 pack needed
Wire bundle with 4 wires.

Procedure:

The ITM modules needs power all the time, grab it where you can. I converted my dash power port to be on all the time for a dash cam and GPS tracker, so I wired it to that. Then it needs CAN high and CAN low which you tap into the white STAR connector behind the glove box. Make a harness with the connectors and wires you bought. See attached PDFs for the pinouts.

The length of the harness depends on where you put the module. The stock location in the Grand Cherokee is up on the map light console, so that's where I put mine. I modified the housing by cutting the mounting holes off. That gives you the needed room to mount the module on top of the assist button module with 3M VHB.

Now you need to drill 2 holes for the microphones. I don't know what size I drilled them, but I sized it up with a bit so they would pop into the holes and have a snug fit.

Programming:

Open Jscan and turn on the ITM module. Go into the body module settings and search for ITM. Make sure you turn on ultrasonic and tilt. Go into VTA settings and change it from VTA to ITM. Then soft reset all controllers. I had trouble when I first installed it because it had the donor car VIN in the module and was throwing codes because of it. It wouldn't pick up my VIN and work until I soft reset the controllers.

That should be it.

Testing it is simple. Lock door and wait 15 seconds. Stick your arm in and wave it around, the horn will honk. Get a floor jack out and try to lift a side, the alarm will go off.

If you want to bypass the ITM module temporarily because you are leaving a living thing in your car (pet), hit the lock button 4 times in 15 seconds. The alarm will set with the doors and hood, but not the ITM module.

ENJOY!

Credit to the thread I got my info from:
https://www.jeeptrackhawk.org/threads/added-oem-interior-intrusion-sensor.8071/

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[Smokey_The_Rooster]

Very cool!

 

[Jebiruph]

I wonder if this would work with a sport as there is no security system or power locks/remote.

It reminds me of the motion sensor I added to my YJ security system that was set to trigger when interior motion was detected.

 

[Gregj]

And,,,,, parts are ordered! This forum keeps costing me more money. OP this is very cool!
Gregj

 

[Gregj]

It is well known that Jeep doesn't turn on the hood pin switch for the alarm from the factory. Well, there is more, I came across a thread in the Trackhawk forums discussing an ultrasonic/tilt sensor module. It only came on export Grand Cherokees around 2018. It has 2 ultrasonic units and a gyroscope. It plugs into the CAN bus and triggers the alarm if someone or something goes in your Jeep or you try to jack it up. I find this highly desirable seeing as I have my doors and top off frequently and I am rarely out of ear-shot of it. Why this doesn't come from the factory on a Wrangler is beyond me.

Poking around in Jscan I see options for ITM module and ITM as one of the modes in the VTA settings. I figured I would spend the money and attempt to make it work. I can just sell the stuff if it doesn't work. IT WORKS!!!

Parts Needed:

ITM Module - 68329822AA
Can be bought on eBay and sometimes included in 5XU941X9AC

[1] ITM module connector 2272431-3 (Mouser)
[5] ITM module terminals 1393366-1 (Mouser) sold in 100/pack, just 1 pack needed
[1] Canbus connector 5-2138650-1 (Mouser)
[2] Canbus terminals 5-963715-1 (Mouser) sold in 100/pack, just 1 pack needed
Wire bundle with 4 wires.

Procedure:

The ITM modules needs power all the time, grab it where you can. I converted my dash power port to be on all the time for a dash cam and GPS tracker, so I wired it to that. Then it needs CAN high and CAN low which you tap into the white STAR connector behind the glove box. Make a harness with the connectors and wires you bought. See attached PDFs for the pinouts.

The length of the harness depends on where you put the module. The stock location in the Grand Cherokee is up on the map light console, so that's where I put mine. I modified the housing by cutting the mounting holes off. That gives you the needed room to mount the module on top of the assist button module with 3M VHB.

Now you need to drill 2 holes for the microphones. I don't know what size I drilled them, but I sized it up with a bit so they would pop into the holes and have a snug fit.

Programming:

Open Jscan and turn on the ITM module. Go into the module settings and make sure you turn on ultrasonic and tilt. Go into VTA settings and change it from VTA to ITM. Then soft reset all controllers. I had trouble when I first installed it because it had the donor car VIN in the module and was throwing codes because of it. It wouldn't pick up my VIN and work until I soft reset the controllers.

That should be it.

Testing it is simple. Lock door and wait 15 seconds. Stick your arm in and wave it around, the horn will honk. Get a floor jack out and try to lift a side, the alarm will go off.

If you want to bypass the ITM module temporarily because you are leaving a living thing in your car (pet), hit the lock button 4 times in 15 seconds. The alarm will set with the doors and hood, but not the ITM module.

ENJOY!

Credit to the thread I got my info from:
https://www.jeeptrackhawk.org/threads/added-oem-interior-intrusion-sensor.8071/

im assuming you don’t need pin 2 in the ITM module just power, ground and the can bus wires?
Gregj

went and read the trackhawk thread and that pin is unused.

 

[mciaio]

I wonder if this would work with a sport as there is no security system or power locks/remote.

Probably not.

 

[mciaio]

im assuming you don’t need pin 2 in the ITM module just power, ground and the can bus wires?

Yup, #2 is for the siren which we don't need.

 

[Zapper]

Great idea and superb instructions - Thank You very, very much !!

 

[73TAWM]

Is this just for a jk? I don't have that set up in my 21 JL but would love to do this.

 

[mciaio]

Is this just for a jk? I don't have that set up in my 21 JL but would love to do this.

Umm, no, I think it's only for JL. I have a 20. Do you have factory keyless?

 

[mciaio]

I just pushed the trim piece back into position and it popped the assist/sos button assembly out. I guess I am going to have to print a spacer piece. Looks like the ITM module doesn't fit piggy backed on the button assembly.

 

[Gregj]

I don’t have my module yet but thinking of putting it in the soundbar with one sensor facing forward and one to the rear to catch activity in the back. Any thoughts on that?

Gregj

 

[mciaio]

thinking of putting it in the soundbar with one sensor facing forward and one to the rear to catch activity in the back.

I think it's a good idea. The only thing I would caution you on is make sure it works that way before you drill holes. I'm assuming the are independent transceivers but one may the the emitter and one receiver.

 

[Gregj]

I think it's a good idea. The only thing I would caution you on is make sure it works that way before you drill holes. I'm assuming the are independent transceivers but one may the the emitter and one receiver.

When the parts come in I’ll give it a try and report back.
Gregj

 

[73TAWM]

Umm, no, I think it's only for JL. I have a 20. Do you have factory keyless?

Yes, it's a 2021 Rubicon.

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